Home / 56,508.48-77,977.80-31,356

Finding the Fourth Proportional to 56,508.48, 77,977.80 and 31,356

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Solution

The fourth proportional to 56,508.48, 77,977.80 and 31,356 is: 43,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,508.48 : 77,977.80 = 31,356 : x
  2. Step 2: Convert to fraction form
    56,508.48/77,977.80 = 31,356/x
  3. Step 3: Cross multiply
    56,508.48x = 77,977.80 × 31,356
  4. Step 4: Simplify right side
    56,508.48x = 2,445,071,896.80
  5. Step 5: Solve for x
    x = 2,445,071,896.80/56,508.48
  6. Step 6: Final answer
    x = 43,269.11

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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.