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Finding the Fourth Proportional to 98,601.79, 136,070.48 and 53,889.79

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Solution

The fourth proportional to 98,601.79, 136,070.48 and 53,889.79 is: 74,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,601.79 : 136,070.48 = 53,889.79 : x
  2. Step 2: Convert to fraction form
    98,601.79/136,070.48 = 53,889.79/x
  3. Step 3: Cross multiply
    98,601.79x = 136,070.48 × 53,889.79
  4. Step 4: Simplify right side
    98,601.79x = 7,332,809,322.95
  5. Step 5: Solve for x
    x = 7,332,809,322.95/98,601.79
  6. Step 6: Final answer
    x = 74,367.91

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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.