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Finding the Fourth Proportional to 86,698.96, 130,041.05 and 34,108.29

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Solution

The fourth proportional to 86,698.96, 130,041.05 and 34,108.29 is: 51,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,698.96 : 130,041.05 = 34,108.29 : x
  2. Step 2: Convert to fraction form
    86,698.96/130,041.05 = 34,108.29/x
  3. Step 3: Cross multiply
    86,698.96x = 130,041.05 × 34,108.29
  4. Step 4: Simplify right side
    86,698.96x = 4,435,477,674.76
  5. Step 5: Solve for x
    x = 4,435,477,674.76/86,698.96
  6. Step 6: Final answer
    x = 51,159.53

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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.