Home / 78,261.66-107,999.19-44,725.50

Finding the Fourth Proportional to 78,261.66, 107,999.19 and 44,725.50

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Solution

The fourth proportional to 78,261.66, 107,999.19 and 44,725.50 is: 61,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,261.66 : 107,999.19 = 44,725.50 : x
  2. Step 2: Convert to fraction form
    78,261.66/107,999.19 = 44,725.50/x
  3. Step 3: Cross multiply
    78,261.66x = 107,999.19 × 44,725.50
  4. Step 4: Simplify right side
    78,261.66x = 4,830,317,772.35
  5. Step 5: Solve for x
    x = 4,830,317,772.35/78,261.66
  6. Step 6: Final answer
    x = 61,720.10

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1.5x scale

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.