Home / 72,078.02-99,458.40-40,248.26

Finding the Fourth Proportional to 72,078.02, 99,458.40 and 40,248.26

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Solution

The fourth proportional to 72,078.02, 99,458.40 and 40,248.26 is: 55,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,078.02 : 99,458.40 = 40,248.26 : x
  2. Step 2: Convert to fraction form
    72,078.02/99,458.40 = 40,248.26/x
  3. Step 3: Cross multiply
    72,078.02x = 99,458.40 × 40,248.26
  4. Step 4: Simplify right side
    72,078.02x = 4,003,027,542.38
  5. Step 5: Solve for x
    x = 4,003,027,542.38/72,078.02
  6. Step 6: Final answer
    x = 55,537.42

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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.