Home / 81,444.08-112,391.74-45,634.79

Finding the Fourth Proportional to 81,444.08, 112,391.74 and 45,634.79

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Solution

The fourth proportional to 81,444.08, 112,391.74 and 45,634.79 is: 62,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,444.08 : 112,391.74 = 45,634.79 : x
  2. Step 2: Convert to fraction form
    81,444.08/112,391.74 = 45,634.79/x
  3. Step 3: Cross multiply
    81,444.08x = 112,391.74 × 45,634.79
  4. Step 4: Simplify right side
    81,444.08x = 5,128,973,452.63
  5. Step 5: Solve for x
    x = 5,128,973,452.63/81,444.08
  6. Step 6: Final answer
    x = 62,975.40

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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.