Home / 40,485.76-60,718.84-20,754.16

Finding the Fourth Proportional to 40,485.76, 60,718.84 and 20,754.16

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Solution

The fourth proportional to 40,485.76, 60,718.84 and 20,754.16 is: 31,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.76 : 60,718.84 = 20,754.16 : x
  2. Step 2: Convert to fraction form
    40,485.76/60,718.84 = 20,754.16/x
  3. Step 3: Cross multiply
    40,485.76x = 60,718.84 × 20,754.16
  4. Step 4: Simplify right side
    40,485.76x = 1,260,168,520.37
  5. Step 5: Solve for x
    x = 1,260,168,520.37/40,485.76
  6. Step 6: Final answer
    x = 31,126.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.