Home / 78,544.32-117,820.37-22,392.70

Finding the Fourth Proportional to 78,544.32, 117,820.37 and 22,392.70

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Solution

The fourth proportional to 78,544.32, 117,820.37 and 22,392.70 is: 33,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.32 : 117,820.37 = 22,392.70 : x
  2. Step 2: Convert to fraction form
    78,544.32/117,820.37 = 22,392.70/x
  3. Step 3: Cross multiply
    78,544.32x = 117,820.37 × 22,392.70
  4. Step 4: Simplify right side
    78,544.32x = 2,638,316,199.30
  5. Step 5: Solve for x
    x = 2,638,316,199.30/78,544.32
  6. Step 6: Final answer
    x = 33,590.16

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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.