Home / 72,029.22-99,395.40-39,762.33

Finding the Fourth Proportional to 72,029.22, 99,395.40 and 39,762.33

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Solution

The fourth proportional to 72,029.22, 99,395.40 and 39,762.33 is: 54,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.22 : 99,395.40 = 39,762.33 : x
  2. Step 2: Convert to fraction form
    72,029.22/99,395.40 = 39,762.33/x
  3. Step 3: Cross multiply
    72,029.22x = 99,395.40 × 39,762.33
  4. Step 4: Simplify right side
    72,029.22x = 3,952,192,695.28
  5. Step 5: Solve for x
    x = 3,952,192,695.28/72,029.22
  6. Step 6: Final answer
    x = 54,869.30

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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.