Home / 66,427.40-99,641.10-40,118.60

Finding the Fourth Proportional to 66,427.40, 99,641.10 and 40,118.60

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Solution

The fourth proportional to 66,427.40, 99,641.10 and 40,118.60 is: 60,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.40 : 99,641.10 = 40,118.60 : x
  2. Step 2: Convert to fraction form
    66,427.40/99,641.10 = 40,118.60/x
  3. Step 3: Cross multiply
    66,427.40x = 99,641.10 × 40,118.60
  4. Step 4: Simplify right side
    66,427.40x = 3,997,461,434.46
  5. Step 5: Solve for x
    x = 3,997,461,434.46/66,427.40
  6. Step 6: Final answer
    x = 60,177.90

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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.