Home / 84,898.76-117,116.02-57,665.16

Finding the Fourth Proportional to 84,898.76, 117,116.02 and 57,665.16

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Solution

The fourth proportional to 84,898.76, 117,116.02 and 57,665.16 is: 79,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,898.76 : 117,116.02 = 57,665.16 : x
  2. Step 2: Convert to fraction form
    84,898.76/117,116.02 = 57,665.16/x
  3. Step 3: Cross multiply
    84,898.76x = 117,116.02 × 57,665.16
  4. Step 4: Simplify right side
    84,898.76x = 6,753,514,031.86
  5. Step 5: Solve for x
    x = 6,753,514,031.86/84,898.76
  6. Step 6: Final answer
    x = 79,547.85

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1.5x scale

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.