Home / 40,800.30-61,200.45-28,358.70

Finding the Fourth Proportional to 40,800.30, 61,200.45 and 28,358.70

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Solution

The fourth proportional to 40,800.30, 61,200.45 and 28,358.70 is: 42,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,800.30 : 61,200.45 = 28,358.70 : x
  2. Step 2: Convert to fraction form
    40,800.30/61,200.45 = 28,358.70/x
  3. Step 3: Cross multiply
    40,800.30x = 61,200.45 × 28,358.70
  4. Step 4: Simplify right side
    40,800.30x = 1,735,565,201.42
  5. Step 5: Solve for x
    x = 1,735,565,201.42/40,800.30
  6. Step 6: Final answer
    x = 42,538.05

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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.