Home / 67,970.12-101,922.28-28,516.64

Finding the Fourth Proportional to 67,970.12, 101,922.28 and 28,516.64

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Solution

The fourth proportional to 67,970.12, 101,922.28 and 28,516.64 is: 42,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,970.12 : 101,922.28 = 28,516.64 : x
  2. Step 2: Convert to fraction form
    67,970.12/101,922.28 = 28,516.64/x
  3. Step 3: Cross multiply
    67,970.12x = 101,922.28 × 28,516.64
  4. Step 4: Simplify right side
    67,970.12x = 2,906,480,966.74
  5. Step 5: Solve for x
    x = 2,906,480,966.74/67,970.12
  6. Step 6: Final answer
    x = 42,761.16

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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.