Home / 99,036.49-136,669.11-53,713.75

Finding the Fourth Proportional to 99,036.49, 136,669.11 and 53,713.75

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Solution

The fourth proportional to 99,036.49, 136,669.11 and 53,713.75 is: 74,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,036.49 : 136,669.11 = 53,713.75 : x
  2. Step 2: Convert to fraction form
    99,036.49/136,669.11 = 53,713.75/x
  3. Step 3: Cross multiply
    99,036.49x = 136,669.11 × 53,713.75
  4. Step 4: Simplify right side
    99,036.49x = 7,341,010,407.26
  5. Step 5: Solve for x
    x = 7,341,010,407.26/99,036.49
  6. Step 6: Final answer
    x = 74,124.30

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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.