Home / 55,057.14-75,981.60-31,182.30

Finding the Fourth Proportional to 55,057.14, 75,981.60 and 31,182.30

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Solution

The fourth proportional to 55,057.14, 75,981.60 and 31,182.30 is: 43,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,057.14 : 75,981.60 = 31,182.30 : x
  2. Step 2: Convert to fraction form
    55,057.14/75,981.60 = 31,182.30/x
  3. Step 3: Cross multiply
    55,057.14x = 75,981.60 × 31,182.30
  4. Step 4: Simplify right side
    55,057.14x = 2,369,281,045.68
  5. Step 5: Solve for x
    x = 2,369,281,045.68/55,057.14
  6. Step 6: Final answer
    x = 43,033.13

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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.