Home / 48,864.74-67,421.58-28,720.04

Finding the Fourth Proportional to 48,864.74, 67,421.58 and 28,720.04

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Solution

The fourth proportional to 48,864.74, 67,421.58 and 28,720.04 is: 39,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,864.74 : 67,421.58 = 28,720.04 : x
  2. Step 2: Convert to fraction form
    48,864.74/67,421.58 = 28,720.04/x
  3. Step 3: Cross multiply
    48,864.74x = 67,421.58 × 28,720.04
  4. Step 4: Simplify right side
    48,864.74x = 1,936,350,474.46
  5. Step 5: Solve for x
    x = 1,936,350,474.46/48,864.74
  6. Step 6: Final answer
    x = 39,626.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.