Home / 86,840.94-130,193.36-34,289.76

Finding the Fourth Proportional to 86,840.94, 130,193.36 and 34,289.76

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Solution

The fourth proportional to 86,840.94, 130,193.36 and 34,289.76 is: 51,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,840.94 : 130,193.36 = 34,289.76 : x
  2. Step 2: Convert to fraction form
    86,840.94/130,193.36 = 34,289.76/x
  3. Step 3: Cross multiply
    86,840.94x = 130,193.36 × 34,289.76
  4. Step 4: Simplify right side
    86,840.94x = 4,464,299,153.72
  5. Step 5: Solve for x
    x = 4,464,299,153.72/86,840.94
  6. Step 6: Final answer
    x = 51,407.77

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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.