Home / 85,030.80-127,546.20-43,040.40

Finding the Fourth Proportional to 85,030.80, 127,546.20 and 43,040.40

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Solution

The fourth proportional to 85,030.80, 127,546.20 and 43,040.40 is: 64,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,030.80 : 127,546.20 = 43,040.40 : x
  2. Step 2: Convert to fraction form
    85,030.80/127,546.20 = 43,040.40/x
  3. Step 3: Cross multiply
    85,030.80x = 127,546.20 × 43,040.40
  4. Step 4: Simplify right side
    85,030.80x = 5,489,639,466.48
  5. Step 5: Solve for x
    x = 5,489,639,466.48/85,030.80
  6. Step 6: Final answer
    x = 64,560.60

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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.