Home / 56,495.93-77,964.17-31,002.72

Finding the Fourth Proportional to 56,495.93, 77,964.17 and 31,002.72

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Solution

The fourth proportional to 56,495.93, 77,964.17 and 31,002.72 is: 42,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,495.93 : 77,964.17 = 31,002.72 : x
  2. Step 2: Convert to fraction form
    56,495.93/77,964.17 = 31,002.72/x
  3. Step 3: Cross multiply
    56,495.93x = 77,964.17 × 31,002.72
  4. Step 4: Simplify right side
    56,495.93x = 2,417,101,177.53
  5. Step 5: Solve for x
    x = 2,417,101,177.53/56,495.93
  6. Step 6: Final answer
    x = 42,783.64

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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.