Home / 81,959.04-113,079.84-56,472.24

Finding the Fourth Proportional to 81,959.04, 113,079.84 and 56,472.24

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Solution

The fourth proportional to 81,959.04, 113,079.84 and 56,472.24 is: 77,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,959.04 : 113,079.84 = 56,472.24 : x
  2. Step 2: Convert to fraction form
    81,959.04/113,079.84 = 56,472.24/x
  3. Step 3: Cross multiply
    81,959.04x = 113,079.84 × 56,472.24
  4. Step 4: Simplify right side
    81,959.04x = 6,385,871,863.64
  5. Step 5: Solve for x
    x = 6,385,871,863.64/81,959.04
  6. Step 6: Final answer
    x = 77,915.41

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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.