Home / 81,223.56-112,088.21-45,413.46

Finding the Fourth Proportional to 81,223.56, 112,088.21 and 45,413.46

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Solution

The fourth proportional to 81,223.56, 112,088.21 and 45,413.46 is: 62,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,223.56 : 112,088.21 = 45,413.46 : x
  2. Step 2: Convert to fraction form
    81,223.56/112,088.21 = 45,413.46/x
  3. Step 3: Cross multiply
    81,223.56x = 112,088.21 × 45,413.46
  4. Step 4: Simplify right side
    81,223.56x = 5,090,313,214.24
  5. Step 5: Solve for x
    x = 5,090,313,214.24/81,223.56
  6. Step 6: Final answer
    x = 62,670.40

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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.