Home / 75,498.67-113,248.28-28,124.20

Finding the Fourth Proportional to 75,498.67, 113,248.28 and 28,124.20

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Solution

The fourth proportional to 75,498.67, 113,248.28 and 28,124.20 is: 42,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,498.67 : 113,248.28 = 28,124.20 : x
  2. Step 2: Convert to fraction form
    75,498.67/113,248.28 = 28,124.20/x
  3. Step 3: Cross multiply
    75,498.67x = 113,248.28 × 28,124.20
  4. Step 4: Simplify right side
    75,498.67x = 3,185,017,276.38
  5. Step 5: Solve for x
    x = 3,185,017,276.38/75,498.67
  6. Step 6: Final answer
    x = 42,186.40

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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.