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Finding the Fourth Proportional to 40,317.84, 60,486.48 and 39,648.36

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Solution

The fourth proportional to 40,317.84, 60,486.48 and 39,648.36 is: 59,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,317.84 : 60,486.48 = 39,648.36 : x
  2. Step 2: Convert to fraction form
    40,317.84/60,486.48 = 39,648.36/x
  3. Step 3: Cross multiply
    40,317.84x = 60,486.48 × 39,648.36
  4. Step 4: Simplify right side
    40,317.84x = 2,398,189,734.17
  5. Step 5: Solve for x
    x = 2,398,189,734.17/40,317.84
  6. Step 6: Final answer
    x = 59,482.10

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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.