Home / 67,289.10-101,152.35-57,666.30

Finding the Fourth Proportional to 67,289.10, 101,152.35 and 57,666.30

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Solution

The fourth proportional to 67,289.10, 101,152.35 and 57,666.30 is: 86,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,289.10 : 101,152.35 = 57,666.30 : x
  2. Step 2: Convert to fraction form
    67,289.10/101,152.35 = 57,666.30/x
  3. Step 3: Cross multiply
    67,289.10x = 101,152.35 × 57,666.30
  4. Step 4: Simplify right side
    67,289.10x = 5,833,081,760.81
  5. Step 5: Solve for x
    x = 5,833,081,760.81/67,289.10
  6. Step 6: Final answer
    x = 86,686.87

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1.5x scale

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.