Home / 81,402.24-112,313.43-52,730.67

Finding the Fourth Proportional to 81,402.24, 112,313.43 and 52,730.67

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Solution

The fourth proportional to 81,402.24, 112,313.43 and 52,730.67 is: 72,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,402.24 : 112,313.43 = 52,730.67 : x
  2. Step 2: Convert to fraction form
    81,402.24/112,313.43 = 52,730.67/x
  3. Step 3: Cross multiply
    81,402.24x = 112,313.43 × 52,730.67
  4. Step 4: Simplify right side
    81,402.24x = 5,922,362,413.90
  5. Step 5: Solve for x
    x = 5,922,362,413.90/81,402.24
  6. Step 6: Final answer
    x = 72,754.29

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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.