Home / 43,106.25-64,659.39-13,526.40

Finding the Fourth Proportional to 43,106.25, 64,659.39 and 13,526.40

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Solution

The fourth proportional to 43,106.25, 64,659.39 and 13,526.40 is: 20,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,106.25 : 64,659.39 = 13,526.40 : x
  2. Step 2: Convert to fraction form
    43,106.25/64,659.39 = 13,526.40/x
  3. Step 3: Cross multiply
    43,106.25x = 64,659.39 × 13,526.40
  4. Step 4: Simplify right side
    43,106.25x = 874,608,772.90
  5. Step 5: Solve for x
    x = 874,608,772.90/43,106.25
  6. Step 6: Final answer
    x = 20,289.60

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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.