Home / 56,348.28-77,762.49-30,855.72

Finding the Fourth Proportional to 56,348.28, 77,762.49 and 30,855.72

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Solution

The fourth proportional to 56,348.28, 77,762.49 and 30,855.72 is: 42,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,348.28 : 77,762.49 = 30,855.72 : x
  2. Step 2: Convert to fraction form
    56,348.28/77,762.49 = 30,855.72/x
  3. Step 3: Cross multiply
    56,348.28x = 77,762.49 × 30,855.72
  4. Step 4: Simplify right side
    56,348.28x = 2,399,417,706.19
  5. Step 5: Solve for x
    x = 2,399,417,706.19/56,348.28
  6. Step 6: Final answer
    x = 42,581.91

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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.