Home / 72,747.52-109,077.36-28,365.76

Finding the Fourth Proportional to 72,747.52, 109,077.36 and 28,365.76

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Solution

The fourth proportional to 72,747.52, 109,077.36 and 28,365.76 is: 42,531.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,747.52 : 109,077.36 = 28,365.76 : x
  2. Step 2: Convert to fraction form
    72,747.52/109,077.36 = 28,365.76/x
  3. Step 3: Cross multiply
    72,747.52x = 109,077.36 × 28,365.76
  4. Step 4: Simplify right side
    72,747.52x = 3,094,062,215.19
  5. Step 5: Solve for x
    x = 3,094,062,215.19/72,747.52
  6. Step 6: Final answer
    x = 42,531.51

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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.