Home / 78,587.06-117,887.58-22,426.11

Finding the Fourth Proportional to 78,587.06, 117,887.58 and 22,426.11

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Solution

The fourth proportional to 78,587.06, 117,887.58 and 22,426.11 is: 33,641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,587.06 : 117,887.58 = 22,426.11 : x
  2. Step 2: Convert to fraction form
    78,587.06/117,887.58 = 22,426.11/x
  3. Step 3: Cross multiply
    78,587.06x = 117,887.58 × 22,426.11
  4. Step 4: Simplify right side
    78,587.06x = 2,643,759,836.71
  5. Step 5: Solve for x
    x = 2,643,759,836.71/78,587.06
  6. Step 6: Final answer
    x = 33,641.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.