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Finding the Fourth Proportional to 85,895.52, 128,737.23 and 62,284.11

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Solution

The fourth proportional to 85,895.52, 128,737.23 and 62,284.11 is: 93,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,895.52 : 128,737.23 = 62,284.11 : x
  2. Step 2: Convert to fraction form
    85,895.52/128,737.23 = 62,284.11/x
  3. Step 3: Cross multiply
    85,895.52x = 128,737.23 × 62,284.11
  4. Step 4: Simplify right side
    85,895.52x = 8,018,283,794.42
  5. Step 5: Solve for x
    x = 8,018,283,794.42/85,895.52
  6. Step 6: Final answer
    x = 93,349.27

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1.5x scale

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.