Home / 40,746.20-61,119.30-39,385.40

Finding the Fourth Proportional to 40,746.20, 61,119.30 and 39,385.40

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Solution

The fourth proportional to 40,746.20, 61,119.30 and 39,385.40 is: 59,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,746.20 : 61,119.30 = 39,385.40 : x
  2. Step 2: Convert to fraction form
    40,746.20/61,119.30 = 39,385.40/x
  3. Step 3: Cross multiply
    40,746.20x = 61,119.30 × 39,385.40
  4. Step 4: Simplify right side
    40,746.20x = 2,407,208,078.22
  5. Step 5: Solve for x
    x = 2,407,208,078.22/40,746.20
  6. Step 6: Final answer
    x = 59,078.10

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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.