Home / 81,533.90-122,534.12-40,010.06

Finding the Fourth Proportional to 81,533.90, 122,534.12 and 40,010.06

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Solution

The fourth proportional to 81,533.90, 122,534.12 and 40,010.06 is: 60,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.90 : 122,534.12 = 40,010.06 : x
  2. Step 2: Convert to fraction form
    81,533.90/122,534.12 = 40,010.06/x
  3. Step 3: Cross multiply
    81,533.90x = 122,534.12 × 40,010.06
  4. Step 4: Simplify right side
    81,533.90x = 4,902,596,980.60
  5. Step 5: Solve for x
    x = 4,902,596,980.60/81,533.90
  6. Step 6: Final answer
    x = 60,129.56

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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.