Home / 65,278.13-90,083.93-36,985.73

Finding the Fourth Proportional to 65,278.13, 90,083.93 and 36,985.73

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Solution

The fourth proportional to 65,278.13, 90,083.93 and 36,985.73 is: 51,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,278.13 : 90,083.93 = 36,985.73 : x
  2. Step 2: Convert to fraction form
    65,278.13/90,083.93 = 36,985.73/x
  3. Step 3: Cross multiply
    65,278.13x = 90,083.93 × 36,985.73
  4. Step 4: Simplify right side
    65,278.13x = 3,331,819,276.97
  5. Step 5: Solve for x
    x = 3,331,819,276.97/65,278.13
  6. Step 6: Final answer
    x = 51,040.36

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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.