Home / 52,101.90-78,037.65-40,322.70

Finding the Fourth Proportional to 52,101.90, 78,037.65 and 40,322.70

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Solution

The fourth proportional to 52,101.90, 78,037.65 and 40,322.70 is: 60,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,101.90 : 78,037.65 = 40,322.70 : x
  2. Step 2: Convert to fraction form
    52,101.90/78,037.65 = 40,322.70/x
  3. Step 3: Cross multiply
    52,101.90x = 78,037.65 × 40,322.70
  4. Step 4: Simplify right side
    52,101.90x = 3,146,688,749.66
  5. Step 5: Solve for x
    x = 3,146,688,749.66/52,101.90
  6. Step 6: Final answer
    x = 60,394.89

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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.