Home / 47,275.47-70,937.91-30,631.20

Finding the Fourth Proportional to 47,275.47, 70,937.91 and 30,631.20

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Solution

The fourth proportional to 47,275.47, 70,937.91 and 30,631.20 is: 45,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,275.47 : 70,937.91 = 30,631.20 : x
  2. Step 2: Convert to fraction form
    47,275.47/70,937.91 = 30,631.20/x
  3. Step 3: Cross multiply
    47,275.47x = 70,937.91 × 30,631.20
  4. Step 4: Simplify right side
    47,275.47x = 2,172,913,308.79
  5. Step 5: Solve for x
    x = 2,172,913,308.79/47,275.47
  6. Step 6: Final answer
    x = 45,962.81

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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.