Home / 40,805.04-61,080.36-31,420.68

Finding the Fourth Proportional to 40,805.04, 61,080.36 and 31,420.68

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Solution

The fourth proportional to 40,805.04, 61,080.36 and 31,420.68 is: 47,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.04 : 61,080.36 = 31,420.68 : x
  2. Step 2: Convert to fraction form
    40,805.04/61,080.36 = 31,420.68/x
  3. Step 3: Cross multiply
    40,805.04x = 61,080.36 × 31,420.68
  4. Step 4: Simplify right side
    40,805.04x = 1,919,186,445.84
  5. Step 5: Solve for x
    x = 1,919,186,445.84/40,805.04
  6. Step 6: Final answer
    x = 47,033.07

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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.