Home / 72,163.29-99,585.98-39,897.39

Finding the Fourth Proportional to 72,163.29, 99,585.98 and 39,897.39

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Solution

The fourth proportional to 72,163.29, 99,585.98 and 39,897.39 is: 55,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,163.29 : 99,585.98 = 39,897.39 : x
  2. Step 2: Convert to fraction form
    72,163.29/99,585.98 = 39,897.39/x
  3. Step 3: Cross multiply
    72,163.29x = 99,585.98 × 39,897.39
  4. Step 4: Simplify right side
    72,163.29x = 3,973,220,682.59
  5. Step 5: Solve for x
    x = 3,973,220,682.59/72,163.29
  6. Step 6: Final answer
    x = 55,058.75

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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.