Home / 87,018.06-120,082.59-51,210.18

Finding the Fourth Proportional to 87,018.06, 120,082.59 and 51,210.18

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Solution

The fourth proportional to 87,018.06, 120,082.59 and 51,210.18 is: 70,668.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018.06 : 120,082.59 = 51,210.18 : x
  2. Step 2: Convert to fraction form
    87,018.06/120,082.59 = 51,210.18/x
  3. Step 3: Cross multiply
    87,018.06x = 120,082.59 × 51,210.18
  4. Step 4: Simplify right side
    87,018.06x = 6,149,451,048.77
  5. Step 5: Solve for x
    x = 6,149,451,048.77/87,018.06
  6. Step 6: Final answer
    x = 70,668.68

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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.