Home / 99,476.28-137,279.50-56,458.62

Finding the Fourth Proportional to 99,476.28, 137,279.50 and 56,458.62

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Solution

The fourth proportional to 99,476.28, 137,279.50 and 56,458.62 is: 77,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,476.28 : 137,279.50 = 56,458.62 : x
  2. Step 2: Convert to fraction form
    99,476.28/137,279.50 = 56,458.62/x
  3. Step 3: Cross multiply
    99,476.28x = 137,279.50 × 56,458.62
  4. Step 4: Simplify right side
    99,476.28x = 7,750,611,124.29
  5. Step 5: Solve for x
    x = 7,750,611,124.29/99,476.28
  6. Step 6: Final answer
    x = 77,914.16

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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.