Home / 42,737.30-64,106.09-13,154.95

Finding the Fourth Proportional to 42,737.30, 64,106.09 and 13,154.95

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Solution

The fourth proportional to 42,737.30, 64,106.09 and 13,154.95 is: 19,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,737.30 : 64,106.09 = 13,154.95 : x
  2. Step 2: Convert to fraction form
    42,737.30/64,106.09 = 13,154.95/x
  3. Step 3: Cross multiply
    42,737.30x = 64,106.09 × 13,154.95
  4. Step 4: Simplify right side
    42,737.30x = 843,312,408.65
  5. Step 5: Solve for x
    x = 843,312,408.65/42,737.30
  6. Step 6: Final answer
    x = 19,732.47

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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.