Home / 72,034.41-99,413.12-40,208.10

Finding the Fourth Proportional to 72,034.41, 99,413.12 and 40,208.10

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Solution

The fourth proportional to 72,034.41, 99,413.12 and 40,208.10 is: 55,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,034.41 : 99,413.12 = 40,208.10 : x
  2. Step 2: Convert to fraction form
    72,034.41/99,413.12 = 40,208.10/x
  3. Step 3: Cross multiply
    72,034.41x = 99,413.12 × 40,208.10
  4. Step 4: Simplify right side
    72,034.41x = 3,997,212,397.99
  5. Step 5: Solve for x
    x = 3,997,212,397.99/72,034.41
  6. Step 6: Final answer
    x = 55,490.32

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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.