Home / 55,017.01-75,925.28-31,143.18

Finding the Fourth Proportional to 55,017.01, 75,925.28 and 31,143.18

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Solution

The fourth proportional to 55,017.01, 75,925.28 and 31,143.18 is: 42,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,017.01 : 75,925.28 = 31,143.18 : x
  2. Step 2: Convert to fraction form
    55,017.01/75,925.28 = 31,143.18/x
  3. Step 3: Cross multiply
    55,017.01x = 75,925.28 × 31,143.18
  4. Step 4: Simplify right side
    55,017.01x = 2,364,554,505.87
  5. Step 5: Solve for x
    x = 2,364,554,505.87/55,017.01
  6. Step 6: Final answer
    x = 42,978.61

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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.