Home / 76,763.48-115,270.26-47,368.16

Finding the Fourth Proportional to 76,763.48, 115,270.26 and 47,368.16

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Solution

The fourth proportional to 76,763.48, 115,270.26 and 47,368.16 is: 71,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,763.48 : 115,270.26 = 47,368.16 : x
  2. Step 2: Convert to fraction form
    76,763.48/115,270.26 = 47,368.16/x
  3. Step 3: Cross multiply
    76,763.48x = 115,270.26 × 47,368.16
  4. Step 4: Simplify right side
    76,763.48x = 5,460,140,118.92
  5. Step 5: Solve for x
    x = 5,460,140,118.92/76,763.48
  6. Step 6: Final answer
    x = 71,129.40

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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.