Home / 87,615.36-131,423.04-28,457.01

Finding the Fourth Proportional to 87,615.36, 131,423.04 and 28,457.01

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Solution

The fourth proportional to 87,615.36, 131,423.04 and 28,457.01 is: 42,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.36 : 131,423.04 = 28,457.01 : x
  2. Step 2: Convert to fraction form
    87,615.36/131,423.04 = 28,457.01/x
  3. Step 3: Cross multiply
    87,615.36x = 131,423.04 × 28,457.01
  4. Step 4: Simplify right side
    87,615.36x = 3,739,906,763.51
  5. Step 5: Solve for x
    x = 3,739,906,763.51/87,615.36
  6. Step 6: Final answer
    x = 42,685.52

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.