Home / 105,538.59-145,641.78-57,791.93

Finding the Fourth Proportional to 105,538.59, 145,641.78 and 57,791.93

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Solution

The fourth proportional to 105,538.59, 145,641.78 and 57,791.93 is: 79,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,538.59 : 145,641.78 = 57,791.93 : x
  2. Step 2: Convert to fraction form
    105,538.59/145,641.78 = 57,791.93/x
  3. Step 3: Cross multiply
    105,538.59x = 145,641.78 × 57,791.93
  4. Step 4: Simplify right side
    105,538.59x = 8,416,918,826.63
  5. Step 5: Solve for x
    x = 8,416,918,826.63/105,538.59
  6. Step 6: Final answer
    x = 79,752.05

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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.