Home / 86,784.35-130,027.92-47,369.12

Finding the Fourth Proportional to 86,784.35, 130,027.92 and 47,369.12

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Solution

The fourth proportional to 86,784.35, 130,027.92 and 47,369.12 is: 70,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,784.35 : 130,027.92 = 47,369.12 : x
  2. Step 2: Convert to fraction form
    86,784.35/130,027.92 = 47,369.12/x
  3. Step 3: Cross multiply
    86,784.35x = 130,027.92 × 47,369.12
  4. Step 4: Simplify right side
    86,784.35x = 6,159,308,145.83
  5. Step 5: Solve for x
    x = 6,159,308,145.83/86,784.35
  6. Step 6: Final answer
    x = 70,972.57

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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.