Home / 55,964.16-77,230.08-30,812.80

Finding the Fourth Proportional to 55,964.16, 77,230.08 and 30,812.80

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Solution

The fourth proportional to 55,964.16, 77,230.08 and 30,812.80 is: 42,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,964.16 : 77,230.08 = 30,812.80 : x
  2. Step 2: Convert to fraction form
    55,964.16/77,230.08 = 30,812.80/x
  3. Step 3: Cross multiply
    55,964.16x = 77,230.08 × 30,812.80
  4. Step 4: Simplify right side
    55,964.16x = 2,379,675,009.02
  5. Step 5: Solve for x
    x = 2,379,675,009.02/55,964.16
  6. Step 6: Final answer
    x = 42,521.41

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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.