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Finding the Fourth Proportional to 88,224.96, 121,764.96 and 64,430.40

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Solution

The fourth proportional to 88,224.96, 121,764.96 and 64,430.40 is: 88,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,224.96 : 121,764.96 = 64,430.40 : x
  2. Step 2: Convert to fraction form
    88,224.96/121,764.96 = 64,430.40/x
  3. Step 3: Cross multiply
    88,224.96x = 121,764.96 × 64,430.40
  4. Step 4: Simplify right side
    88,224.96x = 7,845,365,078.78
  5. Step 5: Solve for x
    x = 7,845,365,078.78/88,224.96
  6. Step 6: Final answer
    x = 88,924.55

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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.