Home / 87,080.58-130,664.70-64,938.42

Finding the Fourth Proportional to 87,080.58, 130,664.70 and 64,938.42

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Solution

The fourth proportional to 87,080.58, 130,664.70 and 64,938.42 is: 97,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,080.58 : 130,664.70 = 64,938.42 : x
  2. Step 2: Convert to fraction form
    87,080.58/130,664.70 = 64,938.42/x
  3. Step 3: Cross multiply
    87,080.58x = 130,664.70 × 64,938.42
  4. Step 4: Simplify right side
    87,080.58x = 8,485,159,167.77
  5. Step 5: Solve for x
    x = 8,485,159,167.77/87,080.58
  6. Step 6: Final answer
    x = 97,440.32

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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.