Home / 78,587.55-117,889.76-33,613.58

Finding the Fourth Proportional to 78,587.55, 117,889.76 and 33,613.58

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Solution

The fourth proportional to 78,587.55, 117,889.76 and 33,613.58 is: 50,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,587.55 : 117,889.76 = 33,613.58 : x
  2. Step 2: Convert to fraction form
    78,587.55/117,889.76 = 33,613.58/x
  3. Step 3: Cross multiply
    78,587.55x = 117,889.76 × 33,613.58
  4. Step 4: Simplify right side
    78,587.55x = 3,962,696,205.46
  5. Step 5: Solve for x
    x = 3,962,696,205.46/78,587.55
  6. Step 6: Final answer
    x = 50,423.97

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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.