Home / 51,980.42-71,728.84-29,312.16

Finding the Fourth Proportional to 51,980.42, 71,728.84 and 29,312.16

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Solution

The fourth proportional to 51,980.42, 71,728.84 and 29,312.16 is: 40,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,980.42 : 71,728.84 = 29,312.16 : x
  2. Step 2: Convert to fraction form
    51,980.42/71,728.84 = 29,312.16/x
  3. Step 3: Cross multiply
    51,980.42x = 71,728.84 × 29,312.16
  4. Step 4: Simplify right side
    51,980.42x = 2,102,527,234.69
  5. Step 5: Solve for x
    x = 2,102,527,234.69/51,980.42
  6. Step 6: Final answer
    x = 40,448.45

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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.