Home / 66,501.20-99,463.80-59,531.60

Finding the Fourth Proportional to 66,501.20, 99,463.80 and 59,531.60

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Solution

The fourth proportional to 66,501.20, 99,463.80 and 59,531.60 is: 89,039.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,501.20 : 99,463.80 = 59,531.60 : x
  2. Step 2: Convert to fraction form
    66,501.20/99,463.80 = 59,531.60/x
  3. Step 3: Cross multiply
    66,501.20x = 99,463.80 × 59,531.60
  4. Step 4: Simplify right side
    66,501.20x = 5,921,239,156.08
  5. Step 5: Solve for x
    x = 5,921,239,156.08/66,501.20
  6. Step 6: Final answer
    x = 89,039.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.