Home / 67,658.32-101,502.43-20,271.48

Finding the Fourth Proportional to 67,658.32, 101,502.43 and 20,271.48

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Solution

The fourth proportional to 67,658.32, 101,502.43 and 20,271.48 is: 30,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,658.32 : 101,502.43 = 20,271.48 : x
  2. Step 2: Convert to fraction form
    67,658.32/101,502.43 = 20,271.48/x
  3. Step 3: Cross multiply
    67,658.32x = 101,502.43 × 20,271.48
  4. Step 4: Simplify right side
    67,658.32x = 2,057,604,479.70
  5. Step 5: Solve for x
    x = 2,057,604,479.70/67,658.32
  6. Step 6: Final answer
    x = 30,411.70

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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.