Home / 56,285.65-77,670.93-30,787.27

Finding the Fourth Proportional to 56,285.65, 77,670.93 and 30,787.27

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Solution

The fourth proportional to 56,285.65, 77,670.93 and 30,787.27 is: 42,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.65 : 77,670.93 = 30,787.27 : x
  2. Step 2: Convert to fraction form
    56,285.65/77,670.93 = 30,787.27/x
  3. Step 3: Cross multiply
    56,285.65x = 77,670.93 × 30,787.27
  4. Step 4: Simplify right side
    56,285.65x = 2,391,275,893.06
  5. Step 5: Solve for x
    x = 2,391,275,893.06/56,285.65
  6. Step 6: Final answer
    x = 42,484.65

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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.