Home / 55,017.13-75,925.46-31,143.30

Finding the Fourth Proportional to 55,017.13, 75,925.46 and 31,143.30

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Solution

The fourth proportional to 55,017.13, 75,925.46 and 31,143.30 is: 42,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,017.13 : 75,925.46 = 31,143.30 : x
  2. Step 2: Convert to fraction form
    55,017.13/75,925.46 = 31,143.30/x
  3. Step 3: Cross multiply
    55,017.13x = 75,925.46 × 31,143.30
  4. Step 4: Simplify right side
    55,017.13x = 2,364,569,378.42
  5. Step 5: Solve for x
    x = 2,364,569,378.42/55,017.13
  6. Step 6: Final answer
    x = 42,978.78

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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.