Home / 84,767.16-117,000.18-57,920.52

Finding the Fourth Proportional to 84,767.16, 117,000.18 and 57,920.52

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Solution

The fourth proportional to 84,767.16, 117,000.18 and 57,920.52 is: 79,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,767.16 : 117,000.18 = 57,920.52 : x
  2. Step 2: Convert to fraction form
    84,767.16/117,000.18 = 57,920.52/x
  3. Step 3: Cross multiply
    84,767.16x = 117,000.18 × 57,920.52
  4. Step 4: Simplify right side
    84,767.16x = 6,776,711,265.69
  5. Step 5: Solve for x
    x = 6,776,711,265.69/84,767.16
  6. Step 6: Final answer
    x = 79,945.01

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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.