Home / 83,423.12-115,095.74-47,587.91

Finding the Fourth Proportional to 83,423.12, 115,095.74 and 47,587.91

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Solution

The fourth proportional to 83,423.12, 115,095.74 and 47,587.91 is: 65,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,423.12 : 115,095.74 = 47,587.91 : x
  2. Step 2: Convert to fraction form
    83,423.12/115,095.74 = 47,587.91/x
  3. Step 3: Cross multiply
    83,423.12x = 115,095.74 × 47,587.91
  4. Step 4: Simplify right side
    83,423.12x = 5,477,164,903.09
  5. Step 5: Solve for x
    x = 5,477,164,903.09/83,423.12
  6. Step 6: Final answer
    x = 65,655.24

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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.