Home / 72,035.08-99,413.40-40,210.20

Finding the Fourth Proportional to 72,035.08, 99,413.40 and 40,210.20

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Solution

The fourth proportional to 72,035.08, 99,413.40 and 40,210.20 is: 55,492.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,035.08 : 99,413.40 = 40,210.20 : x
  2. Step 2: Convert to fraction form
    72,035.08/99,413.40 = 40,210.20/x
  3. Step 3: Cross multiply
    72,035.08x = 99,413.40 × 40,210.20
  4. Step 4: Simplify right side
    72,035.08x = 3,997,432,696.68
  5. Step 5: Solve for x
    x = 3,997,432,696.68/72,035.08
  6. Step 6: Final answer
    x = 55,492.86

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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.