Home / 43,139.02-64,724.10-15,063.21

Finding the Fourth Proportional to 43,139.02, 64,724.10 and 15,063.21

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Solution

The fourth proportional to 43,139.02, 64,724.10 and 15,063.21 is: 22,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.02 : 64,724.10 = 15,063.21 : x
  2. Step 2: Convert to fraction form
    43,139.02/64,724.10 = 15,063.21/x
  3. Step 3: Cross multiply
    43,139.02x = 64,724.10 × 15,063.21
  4. Step 4: Simplify right side
    43,139.02x = 974,952,710.36
  5. Step 5: Solve for x
    x = 974,952,710.36/43,139.02
  6. Step 6: Final answer
    x = 22,600.25

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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.