Home / 75,132.48-112,672.77-21,810.00

Finding the Fourth Proportional to 75,132.48, 112,672.77 and 21,810.00

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Solution

The fourth proportional to 75,132.48, 112,672.77 and 21,810.00 is: 32,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.48 : 112,672.77 = 21,810.00 : x
  2. Step 2: Convert to fraction form
    75,132.48/112,672.77 = 21,810.00/x
  3. Step 3: Cross multiply
    75,132.48x = 112,672.77 × 21,810.00
  4. Step 4: Simplify right side
    75,132.48x = 2,457,393,577.12
  5. Step 5: Solve for x
    x = 2,457,393,577.12/75,132.48
  6. Step 6: Final answer
    x = 32,707.47

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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.