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Finding the Fourth Proportional to 78,767.60, 118,110.60 and 23,356.40

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Solution

The fourth proportional to 78,767.60, 118,110.60 and 23,356.40 is: 35,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.60 : 118,110.60 = 23,356.40 : x
  2. Step 2: Convert to fraction form
    78,767.60/118,110.60 = 23,356.40/x
  3. Step 3: Cross multiply
    78,767.60x = 118,110.60 × 23,356.40
  4. Step 4: Simplify right side
    78,767.60x = 2,758,638,417.84
  5. Step 5: Solve for x
    x = 2,758,638,417.84/78,767.60
  6. Step 6: Final answer
    x = 35,022.50

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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.