Home / 75,500.21-113,200.50-42,223.79

Finding the Fourth Proportional to 75,500.21, 113,200.50 and 42,223.79

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Solution

The fourth proportional to 75,500.21, 113,200.50 and 42,223.79 is: 63,307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,500.21 : 113,200.50 = 42,223.79 : x
  2. Step 2: Convert to fraction form
    75,500.21/113,200.50 = 42,223.79/x
  3. Step 3: Cross multiply
    75,500.21x = 113,200.50 × 42,223.79
  4. Step 4: Simplify right side
    75,500.21x = 4,779,754,139.90
  5. Step 5: Solve for x
    x = 4,779,754,139.90/75,500.21
  6. Step 6: Final answer
    x = 63,307.83

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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.