Home / 87,967.83-121,392.65-52,136.57

Finding the Fourth Proportional to 87,967.83, 121,392.65 and 52,136.57

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Solution

The fourth proportional to 87,967.83, 121,392.65 and 52,136.57 is: 71,946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,967.83 : 121,392.65 = 52,136.57 : x
  2. Step 2: Convert to fraction form
    87,967.83/121,392.65 = 52,136.57/x
  3. Step 3: Cross multiply
    87,967.83x = 121,392.65 × 52,136.57
  4. Step 4: Simplify right side
    87,967.83x = 6,328,996,828.03
  5. Step 5: Solve for x
    x = 6,328,996,828.03/87,967.83
  6. Step 6: Final answer
    x = 71,946.72

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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.