Home / 56,156.48-77,495.68-31,005.80

Finding the Fourth Proportional to 56,156.48, 77,495.68 and 31,005.80

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Solution

The fourth proportional to 56,156.48, 77,495.68 and 31,005.80 is: 42,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,156.48 : 77,495.68 = 31,005.80 : x
  2. Step 2: Convert to fraction form
    56,156.48/77,495.68 = 31,005.80/x
  3. Step 3: Cross multiply
    56,156.48x = 77,495.68 × 31,005.80
  4. Step 4: Simplify right side
    56,156.48x = 2,402,815,554.94
  5. Step 5: Solve for x
    x = 2,402,815,554.94/56,156.48
  6. Step 6: Final answer
    x = 42,787.86

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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.