Home / 52,421.52-72,342.86-28,548.20

Finding the Fourth Proportional to 52,421.52, 72,342.86 and 28,548.20

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Solution

The fourth proportional to 52,421.52, 72,342.86 and 28,548.20 is: 39,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,421.52 : 72,342.86 = 28,548.20 : x
  2. Step 2: Convert to fraction form
    52,421.52/72,342.86 = 28,548.20/x
  3. Step 3: Cross multiply
    52,421.52x = 72,342.86 × 28,548.20
  4. Step 4: Simplify right side
    52,421.52x = 2,065,258,435.85
  5. Step 5: Solve for x
    x = 2,065,258,435.85/52,421.52
  6. Step 6: Final answer
    x = 39,397.15

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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.