Home / 81,534.90-122,535.63-40,011.06

Finding the Fourth Proportional to 81,534.90, 122,535.63 and 40,011.06

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Solution

The fourth proportional to 81,534.90, 122,535.63 and 40,011.06 is: 60,131.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,534.90 : 122,535.63 = 40,011.06 : x
  2. Step 2: Convert to fraction form
    81,534.90/122,535.63 = 40,011.06/x
  3. Step 3: Cross multiply
    81,534.90x = 122,535.63 × 40,011.06
  4. Step 4: Simplify right side
    81,534.90x = 4,902,780,444.07
  5. Step 5: Solve for x
    x = 4,902,780,444.07/81,534.90
  6. Step 6: Final answer
    x = 60,131.07

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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.