Home / 87,054.23-130,876.59-69,509.03

Finding the Fourth Proportional to 87,054.23, 130,876.59 and 69,509.03

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Solution

The fourth proportional to 87,054.23, 130,876.59 and 69,509.03 is: 104,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.23 : 130,876.59 = 69,509.03 : x
  2. Step 2: Convert to fraction form
    87,054.23/130,876.59 = 69,509.03/x
  3. Step 3: Cross multiply
    87,054.23x = 130,876.59 × 69,509.03
  4. Step 4: Simplify right side
    87,054.23x = 9,097,104,166.22
  5. Step 5: Solve for x
    x = 9,097,104,166.22/87,054.23
  6. Step 6: Final answer
    x = 104,499.28

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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.