Home / 43,009.20-64,513.80-39,801.60

Finding the Fourth Proportional to 43,009.20, 64,513.80 and 39,801.60

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Solution

The fourth proportional to 43,009.20, 64,513.80 and 39,801.60 is: 59,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.20 : 64,513.80 = 39,801.60 : x
  2. Step 2: Convert to fraction form
    43,009.20/64,513.80 = 39,801.60/x
  3. Step 3: Cross multiply
    43,009.20x = 64,513.80 × 39,801.60
  4. Step 4: Simplify right side
    43,009.20x = 2,567,752,462.08
  5. Step 5: Solve for x
    x = 2,567,752,462.08/43,009.20
  6. Step 6: Final answer
    x = 59,702.40

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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.