Home / 75,036.60-112,587.70-28,278.52

Finding the Fourth Proportional to 75,036.60, 112,587.70 and 28,278.52

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Solution

The fourth proportional to 75,036.60, 112,587.70 and 28,278.52 is: 42,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,036.60 : 112,587.70 = 28,278.52 : x
  2. Step 2: Convert to fraction form
    75,036.60/112,587.70 = 28,278.52/x
  3. Step 3: Cross multiply
    75,036.60x = 112,587.70 × 28,278.52
  4. Step 4: Simplify right side
    75,036.60x = 3,183,813,526.20
  5. Step 5: Solve for x
    x = 3,183,813,526.20/75,036.60
  6. Step 6: Final answer
    x = 42,430.14

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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.