Home / 42,758.08-64,138.08-14,677.92

Finding the Fourth Proportional to 42,758.08, 64,138.08 and 14,677.92

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Solution

The fourth proportional to 42,758.08, 64,138.08 and 14,677.92 is: 22,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,758.08 : 64,138.08 = 14,677.92 : x
  2. Step 2: Convert to fraction form
    42,758.08/64,138.08 = 14,677.92/x
  3. Step 3: Cross multiply
    42,758.08x = 64,138.08 × 14,677.92
  4. Step 4: Simplify right side
    42,758.08x = 941,413,607.19
  5. Step 5: Solve for x
    x = 941,413,607.19/42,758.08
  6. Step 6: Final answer
    x = 22,017.21

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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.