Home / 86,117.59-118,862.27-54,329.95

Finding the Fourth Proportional to 86,117.59, 118,862.27 and 54,329.95

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Solution

The fourth proportional to 86,117.59, 118,862.27 and 54,329.95 is: 74,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,117.59 : 118,862.27 = 54,329.95 : x
  2. Step 2: Convert to fraction form
    86,117.59/118,862.27 = 54,329.95/x
  3. Step 3: Cross multiply
    86,117.59x = 118,862.27 × 54,329.95
  4. Step 4: Simplify right side
    86,117.59x = 6,457,781,185.99
  5. Step 5: Solve for x
    x = 6,457,781,185.99/86,117.59
  6. Step 6: Final answer
    x = 74,987.95

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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.