Home / 77,489.06-106,931.40-47,269.58

Finding the Fourth Proportional to 77,489.06, 106,931.40 and 47,269.58

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Solution

The fourth proportional to 77,489.06, 106,931.40 and 47,269.58 is: 65,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,489.06 : 106,931.40 = 47,269.58 : x
  2. Step 2: Convert to fraction form
    77,489.06/106,931.40 = 47,269.58/x
  3. Step 3: Cross multiply
    77,489.06x = 106,931.40 × 47,269.58
  4. Step 4: Simplify right side
    77,489.06x = 5,054,602,366.81
  5. Step 5: Solve for x
    x = 5,054,602,366.81/77,489.06
  6. Step 6: Final answer
    x = 65,229.88

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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.