Home / 64,587.40-89,174.11-57,760.24

Finding the Fourth Proportional to 64,587.40, 89,174.11 and 57,760.24

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Solution

The fourth proportional to 64,587.40, 89,174.11 and 57,760.24 is: 79,748.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,587.40 : 89,174.11 = 57,760.24 : x
  2. Step 2: Convert to fraction form
    64,587.40/89,174.11 = 57,760.24/x
  3. Step 3: Cross multiply
    64,587.40x = 89,174.11 × 57,760.24
  4. Step 4: Simplify right side
    64,587.40x = 5,150,717,995.39
  5. Step 5: Solve for x
    x = 5,150,717,995.39/64,587.40
  6. Step 6: Final answer
    x = 79,748.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.