Home / 57,303.36-79,115.52-39,392.64

Finding the Fourth Proportional to 57,303.36, 79,115.52 and 39,392.64

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Solution

The fourth proportional to 57,303.36, 79,115.52 and 39,392.64 is: 54,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,303.36 : 79,115.52 = 39,392.64 : x
  2. Step 2: Convert to fraction form
    57,303.36/79,115.52 = 39,392.64/x
  3. Step 3: Cross multiply
    57,303.36x = 79,115.52 × 39,392.64
  4. Step 4: Simplify right side
    57,303.36x = 3,116,569,197.77
  5. Step 5: Solve for x
    x = 3,116,569,197.77/57,303.36
  6. Step 6: Final answer
    x = 54,387.20

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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.