Home / 83,700.49-115,513.14-47,901.73

Finding the Fourth Proportional to 83,700.49, 115,513.14 and 47,901.73

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Solution

The fourth proportional to 83,700.49, 115,513.14 and 47,901.73 is: 66,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,700.49 : 115,513.14 = 47,901.73 : x
  2. Step 2: Convert to fraction form
    83,700.49/115,513.14 = 47,901.73/x
  3. Step 3: Cross multiply
    83,700.49x = 115,513.14 × 47,901.73
  4. Step 4: Simplify right side
    83,700.49x = 5,533,279,243.73
  5. Step 5: Solve for x
    x = 5,533,279,243.73/83,700.49
  6. Step 6: Final answer
    x = 66,108.09

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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.