Home / 55,963.34-77,230.65-30,812.90

Finding the Fourth Proportional to 55,963.34, 77,230.65 and 30,812.90

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Solution

The fourth proportional to 55,963.34, 77,230.65 and 30,812.90 is: 42,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963.34 : 77,230.65 = 30,812.90 : x
  2. Step 2: Convert to fraction form
    55,963.34/77,230.65 = 30,812.90/x
  3. Step 3: Cross multiply
    55,963.34x = 77,230.65 × 30,812.90
  4. Step 4: Simplify right side
    55,963.34x = 2,379,700,295.39
  5. Step 5: Solve for x
    x = 2,379,700,295.39/55,963.34
  6. Step 6: Final answer
    x = 42,522.49

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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.