Home / 99,377.73-137,154.51-56,372.76

Finding the Fourth Proportional to 99,377.73, 137,154.51 and 56,372.76

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Solution

The fourth proportional to 99,377.73, 137,154.51 and 56,372.76 is: 77,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,377.73 : 137,154.51 = 56,372.76 : x
  2. Step 2: Convert to fraction form
    99,377.73/137,154.51 = 56,372.76/x
  3. Step 3: Cross multiply
    99,377.73x = 137,154.51 × 56,372.76
  4. Step 4: Simplify right side
    99,377.73x = 7,731,778,275.15
  5. Step 5: Solve for x
    x = 7,731,778,275.15/99,377.73
  6. Step 6: Final answer
    x = 77,801.92

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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.