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Finding the Fourth Proportional to 99,059.58, 148,586.70 and 27,987.12

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Solution

The fourth proportional to 99,059.58, 148,586.70 and 27,987.12 is: 41,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,059.58 : 148,586.70 = 27,987.12 : x
  2. Step 2: Convert to fraction form
    99,059.58/148,586.70 = 27,987.12/x
  3. Step 3: Cross multiply
    99,059.58x = 148,586.70 × 27,987.12
  4. Step 4: Simplify right side
    99,059.58x = 4,158,513,803.30
  5. Step 5: Solve for x
    x = 4,158,513,803.30/99,059.58
  6. Step 6: Final answer
    x = 41,979.93

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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.