Home / 74,538.48-102,871.86-42,717.60

Finding the Fourth Proportional to 74,538.48, 102,871.86 and 42,717.60

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Solution

The fourth proportional to 74,538.48, 102,871.86 and 42,717.60 is: 58,955.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,538.48 : 102,871.86 = 42,717.60 : x
  2. Step 2: Convert to fraction form
    74,538.48/102,871.86 = 42,717.60/x
  3. Step 3: Cross multiply
    74,538.48x = 102,871.86 × 42,717.60
  4. Step 4: Simplify right side
    74,538.48x = 4,394,438,966.74
  5. Step 5: Solve for x
    x = 4,394,438,966.74/74,538.48
  6. Step 6: Final answer
    x = 58,955.31

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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.