Home / 88,309.08-121,865.76-52,031.58

Finding the Fourth Proportional to 88,309.08, 121,865.76 and 52,031.58

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Solution

The fourth proportional to 88,309.08, 121,865.76 and 52,031.58 is: 71,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,309.08 : 121,865.76 = 52,031.58 : x
  2. Step 2: Convert to fraction form
    88,309.08/121,865.76 = 52,031.58/x
  3. Step 3: Cross multiply
    88,309.08x = 121,865.76 × 52,031.58
  4. Step 4: Simplify right side
    88,309.08x = 6,340,868,040.70
  5. Step 5: Solve for x
    x = 6,340,868,040.70/88,309.08
  6. Step 6: Final answer
    x = 71,803.13

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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.