Home / 78,718.56-118,077.42-19,554.24

Finding the Fourth Proportional to 78,718.56, 118,077.42 and 19,554.24

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Solution

The fourth proportional to 78,718.56, 118,077.42 and 19,554.24 is: 29,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718.56 : 118,077.42 = 19,554.24 : x
  2. Step 2: Convert to fraction form
    78,718.56/118,077.42 = 19,554.24/x
  3. Step 3: Cross multiply
    78,718.56x = 118,077.42 × 19,554.24
  4. Step 4: Simplify right side
    78,718.56x = 2,308,914,209.26
  5. Step 5: Solve for x
    x = 2,308,914,209.26/78,718.56
  6. Step 6: Final answer
    x = 29,331.26

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1.5x scale

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.