Home / 45,135.04-67,711.02-20,176.08

Finding the Fourth Proportional to 45,135.04, 67,711.02 and 20,176.08

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Solution

The fourth proportional to 45,135.04, 67,711.02 and 20,176.08 is: 30,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,135.04 : 67,711.02 = 20,176.08 : x
  2. Step 2: Convert to fraction form
    45,135.04/67,711.02 = 20,176.08/x
  3. Step 3: Cross multiply
    45,135.04x = 67,711.02 × 20,176.08
  4. Step 4: Simplify right side
    45,135.04x = 1,366,142,956.40
  5. Step 5: Solve for x
    x = 1,366,142,956.40/45,135.04
  6. Step 6: Final answer
    x = 30,267.90

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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.