Home / 109,628.40-164,507.40-39,498.60

Finding the Fourth Proportional to 109,628.40, 164,507.40 and 39,498.60

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Solution

The fourth proportional to 109,628.40, 164,507.40 and 39,498.60 is: 59,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,628.40 : 164,507.40 = 39,498.60 : x
  2. Step 2: Convert to fraction form
    109,628.40/164,507.40 = 39,498.60/x
  3. Step 3: Cross multiply
    109,628.40x = 164,507.40 × 39,498.60
  4. Step 4: Simplify right side
    109,628.40x = 6,497,811,989.64
  5. Step 5: Solve for x
    x = 6,497,811,989.64/109,628.40
  6. Step 6: Final answer
    x = 59,271.25

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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.