Home / 98,521.38-135,959.66-56,079.91

Finding the Fourth Proportional to 98,521.38, 135,959.66 and 56,079.91

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Solution

The fourth proportional to 98,521.38, 135,959.66 and 56,079.91 is: 77,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,521.38 : 135,959.66 = 56,079.91 : x
  2. Step 2: Convert to fraction form
    98,521.38/135,959.66 = 56,079.91/x
  3. Step 3: Cross multiply
    98,521.38x = 135,959.66 × 56,079.91
  4. Step 4: Simplify right side
    98,521.38x = 7,624,605,496.43
  5. Step 5: Solve for x
    x = 7,624,605,496.43/98,521.38
  6. Step 6: Final answer
    x = 77,390.36

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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.