Home / 83,957.64-115,869.72-62,700

Finding the Fourth Proportional to 83,957.64, 115,869.72 and 62,700

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Solution

The fourth proportional to 83,957.64, 115,869.72 and 62,700 is: 86,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,957.64 : 115,869.72 = 62,700 : x
  2. Step 2: Convert to fraction form
    83,957.64/115,869.72 = 62,700/x
  3. Step 3: Cross multiply
    83,957.64x = 115,869.72 × 62,700
  4. Step 4: Simplify right side
    83,957.64x = 7,265,031,444
  5. Step 5: Solve for x
    x = 7,265,031,444/83,957.64
  6. Step 6: Final answer
    x = 86,532.11

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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.