Home / 56,646.61-78,170.64-31,152.94

Finding the Fourth Proportional to 56,646.61, 78,170.64 and 31,152.94

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Solution

The fourth proportional to 56,646.61, 78,170.64 and 31,152.94 is: 42,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,646.61 : 78,170.64 = 31,152.94 : x
  2. Step 2: Convert to fraction form
    56,646.61/78,170.64 = 31,152.94/x
  3. Step 3: Cross multiply
    56,646.61x = 78,170.64 × 31,152.94
  4. Step 4: Simplify right side
    56,646.61x = 2,435,244,945.43
  5. Step 5: Solve for x
    x = 2,435,244,945.43/56,646.61
  6. Step 6: Final answer
    x = 42,990.13

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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.