Home / 60,687.20-91,030.80-25,666.40

Finding the Fourth Proportional to 60,687.20, 91,030.80 and 25,666.40

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Solution

The fourth proportional to 60,687.20, 91,030.80 and 25,666.40 is: 38,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,687.20 : 91,030.80 = 25,666.40 : x
  2. Step 2: Convert to fraction form
    60,687.20/91,030.80 = 25,666.40/x
  3. Step 3: Cross multiply
    60,687.20x = 91,030.80 × 25,666.40
  4. Step 4: Simplify right side
    60,687.20x = 2,336,432,925.12
  5. Step 5: Solve for x
    x = 2,336,432,925.12/60,687.20
  6. Step 6: Final answer
    x = 38,499.60

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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.