Home / 78,290.16-117,441.60-22,130.76

Finding the Fourth Proportional to 78,290.16, 117,441.60 and 22,130.76

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Solution

The fourth proportional to 78,290.16, 117,441.60 and 22,130.76 is: 33,197.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,290.16 : 117,441.60 = 22,130.76 : x
  2. Step 2: Convert to fraction form
    78,290.16/117,441.60 = 22,130.76/x
  3. Step 3: Cross multiply
    78,290.16x = 117,441.60 × 22,130.76
  4. Step 4: Simplify right side
    78,290.16x = 2,599,071,863.62
  5. Step 5: Solve for x
    x = 2,599,071,863.62/78,290.16
  6. Step 6: Final answer
    x = 33,197.94

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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.