Home / 40,774.40-61,161.60-28,332.80

Finding the Fourth Proportional to 40,774.40, 61,161.60 and 28,332.80

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Solution

The fourth proportional to 40,774.40, 61,161.60 and 28,332.80 is: 42,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,774.40 : 61,161.60 = 28,332.80 : x
  2. Step 2: Convert to fraction form
    40,774.40/61,161.60 = 28,332.80/x
  3. Step 3: Cross multiply
    40,774.40x = 61,161.60 × 28,332.80
  4. Step 4: Simplify right side
    40,774.40x = 1,732,879,380.48
  5. Step 5: Solve for x
    x = 1,732,879,380.48/40,774.40
  6. Step 6: Final answer
    x = 42,499.20

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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.