Home / 81,426.06-112,370.18-45,615.30

Finding the Fourth Proportional to 81,426.06, 112,370.18 and 45,615.30

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Solution

The fourth proportional to 81,426.06, 112,370.18 and 45,615.30 is: 62,950.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,426.06 : 112,370.18 = 45,615.30 : x
  2. Step 2: Convert to fraction form
    81,426.06/112,370.18 = 45,615.30/x
  3. Step 3: Cross multiply
    81,426.06x = 112,370.18 × 45,615.30
  4. Step 4: Simplify right side
    81,426.06x = 5,125,799,471.75
  5. Step 5: Solve for x
    x = 5,125,799,471.75/81,426.06
  6. Step 6: Final answer
    x = 62,950.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.