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Finding the Fourth Proportional to 86,053.05, 118,766.03 and 67,862.07

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Solution

The fourth proportional to 86,053.05, 118,766.03 and 67,862.07 is: 93,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.05 : 118,766.03 = 67,862.07 : x
  2. Step 2: Convert to fraction form
    86,053.05/118,766.03 = 67,862.07/x
  3. Step 3: Cross multiply
    86,053.05x = 118,766.03 × 67,862.07
  4. Step 4: Simplify right side
    86,053.05x = 8,059,708,641.48
  5. Step 5: Solve for x
    x = 8,059,708,641.48/86,053.05
  6. Step 6: Final answer
    x = 93,659.77

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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.