Home / 83,465.27-115,221.96-47,648.35

Finding the Fourth Proportional to 83,465.27, 115,221.96 and 47,648.35

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Solution

The fourth proportional to 83,465.27, 115,221.96 and 47,648.35 is: 65,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,465.27 : 115,221.96 = 47,648.35 : x
  2. Step 2: Convert to fraction form
    83,465.27/115,221.96 = 47,648.35/x
  3. Step 3: Cross multiply
    83,465.27x = 115,221.96 × 47,648.35
  4. Step 4: Simplify right side
    83,465.27x = 5,490,136,421.79
  5. Step 5: Solve for x
    x = 5,490,136,421.79/83,465.27
  6. Step 6: Final answer
    x = 65,777.50

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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.