Home / 86,277.40-118,960.14-74,320.36

Finding the Fourth Proportional to 86,277.40, 118,960.14 and 74,320.36

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Solution

The fourth proportional to 86,277.40, 118,960.14 and 74,320.36 is: 102,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,277.40 : 118,960.14 = 74,320.36 : x
  2. Step 2: Convert to fraction form
    86,277.40/118,960.14 = 74,320.36/x
  3. Step 3: Cross multiply
    86,277.40x = 118,960.14 × 74,320.36
  4. Step 4: Simplify right side
    86,277.40x = 8,841,160,430.45
  5. Step 5: Solve for x
    x = 8,841,160,430.45/86,277.40
  6. Step 6: Final answer
    x = 102,473.65

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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.