Home / 47,140.79-70,686.57-30,508.65

Finding the Fourth Proportional to 47,140.79, 70,686.57 and 30,508.65

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Solution

The fourth proportional to 47,140.79, 70,686.57 and 30,508.65 is: 45,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.79 : 70,686.57 = 30,508.65 : x
  2. Step 2: Convert to fraction form
    47,140.79/70,686.57 = 30,508.65/x
  3. Step 3: Cross multiply
    47,140.79x = 70,686.57 × 30,508.65
  4. Step 4: Simplify right side
    47,140.79x = 2,156,551,938.24
  5. Step 5: Solve for x
    x = 2,156,551,938.24/47,140.79
  6. Step 6: Final answer
    x = 45,747.05

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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.