Home / 47,420.40-71,065.80-38,672.40

Finding the Fourth Proportional to 47,420.40, 71,065.80 and 38,672.40

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Solution

The fourth proportional to 47,420.40, 71,065.80 and 38,672.40 is: 57,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,420.40 : 71,065.80 = 38,672.40 : x
  2. Step 2: Convert to fraction form
    47,420.40/71,065.80 = 38,672.40/x
  3. Step 3: Cross multiply
    47,420.40x = 71,065.80 × 38,672.40
  4. Step 4: Simplify right side
    47,420.40x = 2,748,285,043.92
  5. Step 5: Solve for x
    x = 2,748,285,043.92/47,420.40
  6. Step 6: Final answer
    x = 57,955.75

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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.