Home / 88,269.48-121,862.16-58,142.34

Finding the Fourth Proportional to 88,269.48, 121,862.16 and 58,142.34

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Solution

The fourth proportional to 88,269.48, 121,862.16 and 58,142.34 is: 80,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,269.48 : 121,862.16 = 58,142.34 : x
  2. Step 2: Convert to fraction form
    88,269.48/121,862.16 = 58,142.34/x
  3. Step 3: Cross multiply
    88,269.48x = 121,862.16 × 58,142.34
  4. Step 4: Simplify right side
    88,269.48x = 7,085,351,139.85
  5. Step 5: Solve for x
    x = 7,085,351,139.85/88,269.48
  6. Step 6: Final answer
    x = 80,269.55

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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.