Home / 99,470.34-137,234.40-56,444.76

Finding the Fourth Proportional to 99,470.34, 137,234.40 and 56,444.76

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Solution

The fourth proportional to 99,470.34, 137,234.40 and 56,444.76 is: 77,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,470.34 : 137,234.40 = 56,444.76 : x
  2. Step 2: Convert to fraction form
    99,470.34/137,234.40 = 56,444.76/x
  3. Step 3: Cross multiply
    99,470.34x = 137,234.40 × 56,444.76
  4. Step 4: Simplify right side
    99,470.34x = 7,746,162,771.74
  5. Step 5: Solve for x
    x = 7,746,162,771.74/99,470.34
  6. Step 6: Final answer
    x = 77,874.10

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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.