Home / 43,133.50-64,700.28-11,968.78

Finding the Fourth Proportional to 43,133.50, 64,700.28 and 11,968.78

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Solution

The fourth proportional to 43,133.50, 64,700.28 and 11,968.78 is: 17,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,133.50 : 64,700.28 = 11,968.78 : x
  2. Step 2: Convert to fraction form
    43,133.50/64,700.28 = 11,968.78/x
  3. Step 3: Cross multiply
    43,133.50x = 64,700.28 × 11,968.78
  4. Step 4: Simplify right side
    43,133.50x = 774,383,417.26
  5. Step 5: Solve for x
    x = 774,383,417.26/43,133.50
  6. Step 6: Final answer
    x = 17,953.18

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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.