Home / 72,031.97-99,387.60-43,343.93

Finding the Fourth Proportional to 72,031.97, 99,387.60 and 43,343.93

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Solution

The fourth proportional to 72,031.97, 99,387.60 and 43,343.93 is: 59,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,031.97 : 99,387.60 = 43,343.93 : x
  2. Step 2: Convert to fraction form
    72,031.97/99,387.60 = 43,343.93/x
  3. Step 3: Cross multiply
    72,031.97x = 99,387.60 × 43,343.93
  4. Step 4: Simplify right side
    72,031.97x = 4,307,849,177.27
  5. Step 5: Solve for x
    x = 4,307,849,177.27/72,031.97
  6. Step 6: Final answer
    x = 59,804.68

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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.