Home / 56,877.65-78,490.62-31,384.25

Finding the Fourth Proportional to 56,877.65, 78,490.62 and 31,384.25

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Solution

The fourth proportional to 56,877.65, 78,490.62 and 31,384.25 is: 43,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,877.65 : 78,490.62 = 31,384.25 : x
  2. Step 2: Convert to fraction form
    56,877.65/78,490.62 = 31,384.25/x
  3. Step 3: Cross multiply
    56,877.65x = 78,490.62 × 31,384.25
  4. Step 4: Simplify right side
    56,877.65x = 2,463,368,848.28
  5. Step 5: Solve for x
    x = 2,463,368,848.28/56,877.65
  6. Step 6: Final answer
    x = 43,309.97

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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.