Home / 81,748.34-112,823.79-49,925.06

Finding the Fourth Proportional to 81,748.34, 112,823.79 and 49,925.06

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Solution

The fourth proportional to 81,748.34, 112,823.79 and 49,925.06 is: 68,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,748.34 : 112,823.79 = 49,925.06 : x
  2. Step 2: Convert to fraction form
    81,748.34/112,823.79 = 49,925.06/x
  3. Step 3: Cross multiply
    81,748.34x = 112,823.79 × 49,925.06
  4. Step 4: Simplify right side
    81,748.34x = 5,632,734,485.18
  5. Step 5: Solve for x
    x = 5,632,734,485.18/81,748.34
  6. Step 6: Final answer
    x = 68,903.35

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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.