Home / 86,931.32-130,396.99-47,466.91

Finding the Fourth Proportional to 86,931.32, 130,396.99 and 47,466.91

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Solution

The fourth proportional to 86,931.32, 130,396.99 and 47,466.91 is: 71,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931.32 : 130,396.99 = 47,466.91 : x
  2. Step 2: Convert to fraction form
    86,931.32/130,396.99 = 47,466.91/x
  3. Step 3: Cross multiply
    86,931.32x = 130,396.99 × 47,466.91
  4. Step 4: Simplify right side
    86,931.32x = 6,189,541,906.94
  5. Step 5: Solve for x
    x = 6,189,541,906.94/86,931.32
  6. Step 6: Final answer
    x = 71,200.36

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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.