Home / 59,438.90-89,162.40-18,909.20

Finding the Fourth Proportional to 59,438.90, 89,162.40 and 18,909.20

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Solution

The fourth proportional to 59,438.90, 89,162.40 and 18,909.20 is: 28,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,438.90 : 89,162.40 = 18,909.20 : x
  2. Step 2: Convert to fraction form
    59,438.90/89,162.40 = 18,909.20/x
  3. Step 3: Cross multiply
    59,438.90x = 89,162.40 × 18,909.20
  4. Step 4: Simplify right side
    59,438.90x = 1,685,989,654.08
  5. Step 5: Solve for x
    x = 1,685,989,654.08/59,438.90
  6. Step 6: Final answer
    x = 28,365.09

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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.