Home / 77,411.04-106,828.11-42,956.37

Finding the Fourth Proportional to 77,411.04, 106,828.11 and 42,956.37

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Solution

The fourth proportional to 77,411.04, 106,828.11 and 42,956.37 is: 59,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,411.04 : 106,828.11 = 42,956.37 : x
  2. Step 2: Convert to fraction form
    77,411.04/106,828.11 = 42,956.37/x
  3. Step 3: Cross multiply
    77,411.04x = 106,828.11 × 42,956.37
  4. Step 4: Simplify right side
    77,411.04x = 4,588,947,819.56
  5. Step 5: Solve for x
    x = 4,588,947,819.56/77,411.04
  6. Step 6: Final answer
    x = 59,280.28

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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.