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Finding the Fourth Proportional to 88,365.70, 121,935.54 and 50,117.50

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Solution

The fourth proportional to 88,365.70, 121,935.54 and 50,117.50 is: 69,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,365.70 : 121,935.54 = 50,117.50 : x
  2. Step 2: Convert to fraction form
    88,365.70/121,935.54 = 50,117.50/x
  3. Step 3: Cross multiply
    88,365.70x = 121,935.54 × 50,117.50
  4. Step 4: Simplify right side
    88,365.70x = 6,111,104,425.95
  5. Step 5: Solve for x
    x = 6,111,104,425.95/88,365.70
  6. Step 6: Final answer
    x = 69,156.97

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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.