Home / 64,854.19-89,504.65-39,367.05

Finding the Fourth Proportional to 64,854.19, 89,504.65 and 39,367.05

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Solution

The fourth proportional to 64,854.19, 89,504.65 and 39,367.05 is: 54,330.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.19 : 89,504.65 = 39,367.05 : x
  2. Step 2: Convert to fraction form
    64,854.19/89,504.65 = 39,367.05/x
  3. Step 3: Cross multiply
    64,854.19x = 89,504.65 × 39,367.05
  4. Step 4: Simplify right side
    64,854.19x = 3,523,534,031.78
  5. Step 5: Solve for x
    x = 3,523,534,031.78/64,854.19
  6. Step 6: Final answer
    x = 54,330.09

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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.