Home / 76,258.16-105,233.56-42,269.80

Finding the Fourth Proportional to 76,258.16, 105,233.56 and 42,269.80

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Solution

The fourth proportional to 76,258.16, 105,233.56 and 42,269.80 is: 58,330.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,258.16 : 105,233.56 = 42,269.80 : x
  2. Step 2: Convert to fraction form
    76,258.16/105,233.56 = 42,269.80/x
  3. Step 3: Cross multiply
    76,258.16x = 105,233.56 × 42,269.80
  4. Step 4: Simplify right side
    76,258.16x = 4,448,201,534.49
  5. Step 5: Solve for x
    x = 4,448,201,534.49/76,258.16
  6. Step 6: Final answer
    x = 58,330.83

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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.