Home / 72,228.06-99,674.99-40,394.93

Finding the Fourth Proportional to 72,228.06, 99,674.99 and 40,394.93

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Solution

The fourth proportional to 72,228.06, 99,674.99 and 40,394.93 is: 55,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,228.06 : 99,674.99 = 40,394.93 : x
  2. Step 2: Convert to fraction form
    72,228.06/99,674.99 = 40,394.93/x
  3. Step 3: Cross multiply
    72,228.06x = 99,674.99 × 40,394.93
  4. Step 4: Simplify right side
    72,228.06x = 4,026,363,543.45
  5. Step 5: Solve for x
    x = 4,026,363,543.45/72,228.06
  6. Step 6: Final answer
    x = 55,745.14

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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.