Home / 86,807.40-130,254.30-34,218.60

Finding the Fourth Proportional to 86,807.40, 130,254.30 and 34,218.60

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Solution

The fourth proportional to 86,807.40, 130,254.30 and 34,218.60 is: 51,344.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,807.40 : 130,254.30 = 34,218.60 : x
  2. Step 2: Convert to fraction form
    86,807.40/130,254.30 = 34,218.60/x
  3. Step 3: Cross multiply
    86,807.40x = 130,254.30 × 34,218.60
  4. Step 4: Simplify right side
    86,807.40x = 4,457,119,789.98
  5. Step 5: Solve for x
    x = 4,457,119,789.98/86,807.40
  6. Step 6: Final answer
    x = 51,344.93

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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.