Home / 90,795.60-136,031.40-43,945.20

Finding the Fourth Proportional to 90,795.60, 136,031.40 and 43,945.20

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Solution

The fourth proportional to 90,795.60, 136,031.40 and 43,945.20 is: 65,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,795.60 : 136,031.40 = 43,945.20 : x
  2. Step 2: Convert to fraction form
    90,795.60/136,031.40 = 43,945.20/x
  3. Step 3: Cross multiply
    90,795.60x = 136,031.40 × 43,945.20
  4. Step 4: Simplify right side
    90,795.60x = 5,977,927,079.28
  5. Step 5: Solve for x
    x = 5,977,927,079.28/90,795.60
  6. Step 6: Final answer
    x = 65,839.39

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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.