Home / 76,764.48-115,271.76-47,369.16

Finding the Fourth Proportional to 76,764.48, 115,271.76 and 47,369.16

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Solution

The fourth proportional to 76,764.48, 115,271.76 and 47,369.16 is: 71,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,764.48 : 115,271.76 = 47,369.16 : x
  2. Step 2: Convert to fraction form
    76,764.48/115,271.76 = 47,369.16/x
  3. Step 3: Cross multiply
    76,764.48x = 115,271.76 × 47,369.16
  4. Step 4: Simplify right side
    76,764.48x = 5,460,326,442.92
  5. Step 5: Solve for x
    x = 5,460,326,442.92/76,764.48
  6. Step 6: Final answer
    x = 71,130.90

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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.