Home / 52,043.28-78,064.56-12,600.60

Finding the Fourth Proportional to 52,043.28, 78,064.56 and 12,600.60

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Solution

The fourth proportional to 52,043.28, 78,064.56 and 12,600.60 is: 18,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,043.28 : 78,064.56 = 12,600.60 : x
  2. Step 2: Convert to fraction form
    52,043.28/78,064.56 = 12,600.60/x
  3. Step 3: Cross multiply
    52,043.28x = 78,064.56 × 12,600.60
  4. Step 4: Simplify right side
    52,043.28x = 983,660,294.74
  5. Step 5: Solve for x
    x = 983,660,294.74/52,043.28
  6. Step 6: Final answer
    x = 18,900.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.