Home / 88,145.34-121,641.44-47,859.42

Finding the Fourth Proportional to 88,145.34, 121,641.44 and 47,859.42

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Solution

The fourth proportional to 88,145.34, 121,641.44 and 47,859.42 is: 66,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.34 : 121,641.44 = 47,859.42 : x
  2. Step 2: Convert to fraction form
    88,145.34/121,641.44 = 47,859.42/x
  3. Step 3: Cross multiply
    88,145.34x = 121,641.44 × 47,859.42
  4. Step 4: Simplify right side
    88,145.34x = 5,821,688,527.07
  5. Step 5: Solve for x
    x = 5,821,688,527.07/88,145.34
  6. Step 6: Final answer
    x = 66,046.47

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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.