Home / 66,088.50-99,139.02-21,715.47

Finding the Fourth Proportional to 66,088.50, 99,139.02 and 21,715.47

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Solution

The fourth proportional to 66,088.50, 99,139.02 and 21,715.47 is: 32,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,088.50 : 99,139.02 = 21,715.47 : x
  2. Step 2: Convert to fraction form
    66,088.50/99,139.02 = 21,715.47/x
  3. Step 3: Cross multiply
    66,088.50x = 99,139.02 × 21,715.47
  4. Step 4: Simplify right side
    66,088.50x = 2,152,850,414.64
  5. Step 5: Solve for x
    x = 2,152,850,414.64/66,088.50
  6. Step 6: Final answer
    x = 32,575.27

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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.