Home / 47,000.79-64,861.20-25,780.14

Finding the Fourth Proportional to 47,000.79, 64,861.20 and 25,780.14

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Solution

The fourth proportional to 47,000.79, 64,861.20 and 25,780.14 is: 35,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,000.79 : 64,861.20 = 25,780.14 : x
  2. Step 2: Convert to fraction form
    47,000.79/64,861.20 = 25,780.14/x
  3. Step 3: Cross multiply
    47,000.79x = 64,861.20 × 25,780.14
  4. Step 4: Simplify right side
    47,000.79x = 1,672,130,816.57
  5. Step 5: Solve for x
    x = 1,672,130,816.57/47,000.79
  6. Step 6: Final answer
    x = 35,576.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.