Home / 86,547.28-119,433.64-48,821.52

Finding the Fourth Proportional to 86,547.28, 119,433.64 and 48,821.52

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Solution

The fourth proportional to 86,547.28, 119,433.64 and 48,821.52 is: 67,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,547.28 : 119,433.64 = 48,821.52 : x
  2. Step 2: Convert to fraction form
    86,547.28/119,433.64 = 48,821.52/x
  3. Step 3: Cross multiply
    86,547.28x = 119,433.64 × 48,821.52
  4. Step 4: Simplify right side
    86,547.28x = 5,830,931,843.93
  5. Step 5: Solve for x
    x = 5,830,931,843.93/86,547.28
  6. Step 6: Final answer
    x = 67,372.79

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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.