Home / 88,270.40-132,405.60-60,276.80

Finding the Fourth Proportional to 88,270.40, 132,405.60 and 60,276.80

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Solution

The fourth proportional to 88,270.40, 132,405.60 and 60,276.80 is: 90,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,270.40 : 132,405.60 = 60,276.80 : x
  2. Step 2: Convert to fraction form
    88,270.40/132,405.60 = 60,276.80/x
  3. Step 3: Cross multiply
    88,270.40x = 132,405.60 × 60,276.80
  4. Step 4: Simplify right side
    88,270.40x = 7,980,985,870.08
  5. Step 5: Solve for x
    x = 7,980,985,870.08/88,270.40
  6. Step 6: Final answer
    x = 90,415.20

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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.