Home / 79,712.10-109,986.58-60,586.80

Finding the Fourth Proportional to 79,712.10, 109,986.58 and 60,586.80

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Solution

The fourth proportional to 79,712.10, 109,986.58 and 60,586.80 is: 83,597.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712.10 : 109,986.58 = 60,586.80 : x
  2. Step 2: Convert to fraction form
    79,712.10/109,986.58 = 60,586.80/x
  3. Step 3: Cross multiply
    79,712.10x = 109,986.58 × 60,586.80
  4. Step 4: Simplify right side
    79,712.10x = 6,663,734,925.14
  5. Step 5: Solve for x
    x = 6,663,734,925.14/79,712.10
  6. Step 6: Final answer
    x = 83,597.53

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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.