Home / 47,009.84-70,420.72-28,279.52

Finding the Fourth Proportional to 47,009.84, 70,420.72 and 28,279.52

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Solution

The fourth proportional to 47,009.84, 70,420.72 and 28,279.52 is: 42,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,009.84 : 70,420.72 = 28,279.52 : x
  2. Step 2: Convert to fraction form
    47,009.84/70,420.72 = 28,279.52/x
  3. Step 3: Cross multiply
    47,009.84x = 70,420.72 × 28,279.52
  4. Step 4: Simplify right side
    47,009.84x = 1,991,464,159.65
  5. Step 5: Solve for x
    x = 1,991,464,159.65/47,009.84
  6. Step 6: Final answer
    x = 42,362.71

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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.