Home / 64,109.12-96,166.65-19,737.86

Finding the Fourth Proportional to 64,109.12, 96,166.65 and 19,737.86

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Solution

The fourth proportional to 64,109.12, 96,166.65 and 19,737.86 is: 29,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,109.12 : 96,166.65 = 19,737.86 : x
  2. Step 2: Convert to fraction form
    64,109.12/96,166.65 = 19,737.86/x
  3. Step 3: Cross multiply
    64,109.12x = 96,166.65 × 19,737.86
  4. Step 4: Simplify right side
    64,109.12x = 1,898,123,874.37
  5. Step 5: Solve for x
    x = 1,898,123,874.37/64,109.12
  6. Step 6: Final answer
    x = 29,607.70

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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.