Home / 71,919.09-99,255.69-43,248.06

Finding the Fourth Proportional to 71,919.09, 99,255.69 and 43,248.06

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Solution

The fourth proportional to 71,919.09, 99,255.69 and 43,248.06 is: 59,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,919.09 : 99,255.69 = 43,248.06 : x
  2. Step 2: Convert to fraction form
    71,919.09/99,255.69 = 43,248.06/x
  3. Step 3: Cross multiply
    71,919.09x = 99,255.69 × 43,248.06
  4. Step 4: Simplify right side
    71,919.09x = 4,292,616,036.46
  5. Step 5: Solve for x
    x = 4,292,616,036.46/71,919.09
  6. Step 6: Final answer
    x = 59,686.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.