Home / 77,411.26-106,828.44-42,956.62

Finding the Fourth Proportional to 77,411.26, 106,828.44 and 42,956.62

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Solution

The fourth proportional to 77,411.26, 106,828.44 and 42,956.62 is: 59,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,411.26 : 106,828.44 = 42,956.62 : x
  2. Step 2: Convert to fraction form
    77,411.26/106,828.44 = 42,956.62/x
  3. Step 3: Cross multiply
    77,411.26x = 106,828.44 × 42,956.62
  4. Step 4: Simplify right side
    77,411.26x = 4,588,988,702.27
  5. Step 5: Solve for x
    x = 4,588,988,702.27/77,411.26
  6. Step 6: Final answer
    x = 59,280.64

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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.