Home / 60,575.20-90,881.40-31,013.78

Finding the Fourth Proportional to 60,575.20, 90,881.40 and 31,013.78

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Solution

The fourth proportional to 60,575.20, 90,881.40 and 31,013.78 is: 46,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,575.20 : 90,881.40 = 31,013.78 : x
  2. Step 2: Convert to fraction form
    60,575.20/90,881.40 = 31,013.78/x
  3. Step 3: Cross multiply
    60,575.20x = 90,881.40 × 31,013.78
  4. Step 4: Simplify right side
    60,575.20x = 2,818,575,745.69
  5. Step 5: Solve for x
    x = 2,818,575,745.69/60,575.20
  6. Step 6: Final answer
    x = 46,530.19

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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.