Home / 79,159.08-118,737.38-31,786.22

Finding the Fourth Proportional to 79,159.08, 118,737.38 and 31,786.22

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Solution

The fourth proportional to 79,159.08, 118,737.38 and 31,786.22 is: 47,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,159.08 : 118,737.38 = 31,786.22 : x
  2. Step 2: Convert to fraction form
    79,159.08/118,737.38 = 31,786.22/x
  3. Step 3: Cross multiply
    79,159.08x = 118,737.38 × 31,786.22
  4. Step 4: Simplify right side
    79,159.08x = 3,774,212,482.90
  5. Step 5: Solve for x
    x = 3,774,212,482.90/79,159.08
  6. Step 6: Final answer
    x = 47,678.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.