Home / 54,335.40-81,430.20-38,734.80

Finding the Fourth Proportional to 54,335.40, 81,430.20 and 38,734.80

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Solution

The fourth proportional to 54,335.40, 81,430.20 and 38,734.80 is: 58,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,335.40 : 81,430.20 = 38,734.80 : x
  2. Step 2: Convert to fraction form
    54,335.40/81,430.20 = 38,734.80/x
  3. Step 3: Cross multiply
    54,335.40x = 81,430.20 × 38,734.80
  4. Step 4: Simplify right side
    54,335.40x = 3,154,182,510.96
  5. Step 5: Solve for x
    x = 3,154,182,510.96/54,335.40
  6. Step 6: Final answer
    x = 58,050.23

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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.