Home / 99,666.14-137,572.59-59,392.53

Finding the Fourth Proportional to 99,666.14, 137,572.59 and 59,392.53

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Solution

The fourth proportional to 99,666.14, 137,572.59 and 59,392.53 is: 81,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.14 : 137,572.59 = 59,392.53 : x
  2. Step 2: Convert to fraction form
    99,666.14/137,572.59 = 59,392.53/x
  3. Step 3: Cross multiply
    99,666.14x = 137,572.59 × 59,392.53
  4. Step 4: Simplify right side
    99,666.14x = 8,170,784,401.47
  5. Step 5: Solve for x
    x = 8,170,784,401.47/99,666.14
  6. Step 6: Final answer
    x = 81,981.55

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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.