Home / 87,255.65-130,292.44-69,284.66

Finding the Fourth Proportional to 87,255.65, 130,292.44 and 69,284.66

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Solution

The fourth proportional to 87,255.65, 130,292.44 and 69,284.66 is: 103,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,255.65 : 130,292.44 = 69,284.66 : x
  2. Step 2: Convert to fraction form
    87,255.65/130,292.44 = 69,284.66/x
  3. Step 3: Cross multiply
    87,255.65x = 130,292.44 × 69,284.66
  4. Step 4: Simplify right side
    87,255.65x = 9,027,266,581.30
  5. Step 5: Solve for x
    x = 9,027,266,581.30/87,255.65
  6. Step 6: Final answer
    x = 103,457.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.