Home / 47,139.32-70,720.50-15,974.84

Finding the Fourth Proportional to 47,139.32, 70,720.50 and 15,974.84

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Solution

The fourth proportional to 47,139.32, 70,720.50 and 15,974.84 is: 23,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,139.32 : 70,720.50 = 15,974.84 : x
  2. Step 2: Convert to fraction form
    47,139.32/70,720.50 = 15,974.84/x
  3. Step 3: Cross multiply
    47,139.32x = 70,720.50 × 15,974.84
  4. Step 4: Simplify right side
    47,139.32x = 1,129,748,672.22
  5. Step 5: Solve for x
    x = 1,129,748,672.22/47,139.32
  6. Step 6: Final answer
    x = 23,966.16

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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.