Home / 83,731.23-115,516.49-47,424.33

Finding the Fourth Proportional to 83,731.23, 115,516.49 and 47,424.33

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Solution

The fourth proportional to 83,731.23, 115,516.49 and 47,424.33 is: 65,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.23 : 115,516.49 = 47,424.33 : x
  2. Step 2: Convert to fraction form
    83,731.23/115,516.49 = 47,424.33/x
  3. Step 3: Cross multiply
    83,731.23x = 115,516.49 × 47,424.33
  4. Step 4: Simplify right side
    83,731.23x = 5,478,291,905.08
  5. Step 5: Solve for x
    x = 5,478,291,905.08/83,731.23
  6. Step 6: Final answer
    x = 65,427.10

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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.