Home / 78,316.22-108,076.49-42,506.23

Finding the Fourth Proportional to 78,316.22, 108,076.49 and 42,506.23

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Solution

The fourth proportional to 78,316.22, 108,076.49 and 42,506.23 is: 58,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,316.22 : 108,076.49 = 42,506.23 : x
  2. Step 2: Convert to fraction form
    78,316.22/108,076.49 = 42,506.23/x
  3. Step 3: Cross multiply
    78,316.22x = 108,076.49 × 42,506.23
  4. Step 4: Simplify right side
    78,316.22x = 4,593,924,053.29
  5. Step 5: Solve for x
    x = 4,593,924,053.29/78,316.22
  6. Step 6: Final answer
    x = 58,658.66

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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.