Home / 75,714.36-112,988.22-66,499.80

Finding the Fourth Proportional to 75,714.36, 112,988.22 and 66,499.80

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Solution

The fourth proportional to 75,714.36, 112,988.22 and 66,499.80 is: 99,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,714.36 : 112,988.22 = 66,499.80 : x
  2. Step 2: Convert to fraction form
    75,714.36/112,988.22 = 66,499.80/x
  3. Step 3: Cross multiply
    75,714.36x = 112,988.22 × 66,499.80
  4. Step 4: Simplify right side
    75,714.36x = 7,513,694,032.36
  5. Step 5: Solve for x
    x = 7,513,694,032.36/75,714.36
  6. Step 6: Final answer
    x = 99,237.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.