Home / 75,687.30-113,530.95-31,265.24

Finding the Fourth Proportional to 75,687.30, 113,530.95 and 31,265.24

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Solution

The fourth proportional to 75,687.30, 113,530.95 and 31,265.24 is: 46,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,687.30 : 113,530.95 = 31,265.24 : x
  2. Step 2: Convert to fraction form
    75,687.30/113,530.95 = 31,265.24/x
  3. Step 3: Cross multiply
    75,687.30x = 113,530.95 × 31,265.24
  4. Step 4: Simplify right side
    75,687.30x = 3,549,571,831.52
  5. Step 5: Solve for x
    x = 3,549,571,831.52/75,687.30
  6. Step 6: Final answer
    x = 46,897.85

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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.