Home / 42,987.60-64,387.91-26,297.15

Finding the Fourth Proportional to 42,987.60, 64,387.91 and 26,297.15

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Solution

The fourth proportional to 42,987.60, 64,387.91 and 26,297.15 is: 39,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,987.60 : 64,387.91 = 26,297.15 : x
  2. Step 2: Convert to fraction form
    42,987.60/64,387.91 = 26,297.15/x
  3. Step 3: Cross multiply
    42,987.60x = 64,387.91 × 26,297.15
  4. Step 4: Simplify right side
    42,987.60x = 1,693,218,271.26
  5. Step 5: Solve for x
    x = 1,693,218,271.26/42,987.60
  6. Step 6: Final answer
    x = 39,388.53

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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.