Home / 56,937,122.91-78,573,087.72-30,831,639.12

Finding the Fourth Proportional to 56,937,122.91, 78,573,087.72 and 30,831,639.12

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Solution

The fourth proportional to 56,937,122.91, 78,573,087.72 and 30,831,639.12 is: 42,547,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,937,122.91 : 78,573,087.72 = 30,831,639.12 : x
  2. Step 2: Convert to fraction form
    56,937,122.91/78,573,087.72 = 30,831,639.12/x
  3. Step 3: Cross multiply
    56,937,122.91x = 78,573,087.72 × 30,831,639.12
  4. Step 4: Simplify right side
    56,937,122.91x = 2,422,537,085,127,143.50
  5. Step 5: Solve for x
    x = 2,422,537,085,127,143.50/56,937,122.91
  6. Step 6: Final answer
    x = 42,547,585.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.