Home / 61,869.60-85,380-35,011.62

Finding the Fourth Proportional to 61,869.60, 85,380 and 35,011.62

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Solution

The fourth proportional to 61,869.60, 85,380 and 35,011.62 is: 48,316.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,869.60 : 85,380 = 35,011.62 : x
  2. Step 2: Convert to fraction form
    61,869.60/85,380 = 35,011.62/x
  3. Step 3: Cross multiply
    61,869.60x = 85,380 × 35,011.62
  4. Step 4: Simplify right side
    61,869.60x = 2,989,292,115.60
  5. Step 5: Solve for x
    x = 2,989,292,115.60/61,869.60
  6. Step 6: Final answer
    x = 48,316.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.