Home / 56,310.08-77,703.84-31,160

Finding the Fourth Proportional to 56,310.08, 77,703.84 and 31,160

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Solution

The fourth proportional to 56,310.08, 77,703.84 and 31,160 is: 42,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,310.08 : 77,703.84 = 31,160 : x
  2. Step 2: Convert to fraction form
    56,310.08/77,703.84 = 31,160/x
  3. Step 3: Cross multiply
    56,310.08x = 77,703.84 × 31,160
  4. Step 4: Simplify right side
    56,310.08x = 2,421,251,654.40
  5. Step 5: Solve for x
    x = 2,421,251,654.40/56,310.08
  6. Step 6: Final answer
    x = 42,998.55

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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.