Home / 90,003.60-134,875.80-40,042.80

Finding the Fourth Proportional to 90,003.60, 134,875.80 and 40,042.80

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Solution

The fourth proportional to 90,003.60, 134,875.80 and 40,042.80 is: 60,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,003.60 : 134,875.80 = 40,042.80 : x
  2. Step 2: Convert to fraction form
    90,003.60/134,875.80 = 40,042.80/x
  3. Step 3: Cross multiply
    90,003.60x = 134,875.80 × 40,042.80
  4. Step 4: Simplify right side
    90,003.60x = 5,400,804,684.24
  5. Step 5: Solve for x
    x = 5,400,804,684.24/90,003.60
  6. Step 6: Final answer
    x = 60,006.54

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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.