Home / 42,752.12-64,420-35,131.64

Finding the Fourth Proportional to 42,752.12, 64,420 and 35,131.64

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Solution

The fourth proportional to 42,752.12, 64,420 and 35,131.64 is: 52,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,752.12 : 64,420 = 35,131.64 : x
  2. Step 2: Convert to fraction form
    42,752.12/64,420 = 35,131.64/x
  3. Step 3: Cross multiply
    42,752.12x = 64,420 × 35,131.64
  4. Step 4: Simplify right side
    42,752.12x = 2,263,180,248.80
  5. Step 5: Solve for x
    x = 2,263,180,248.80/42,752.12
  6. Step 6: Final answer
    x = 52,937.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.