Home / 42,747-64,125.63-17,803.95

Finding the Fourth Proportional to 42,747, 64,125.63 and 17,803.95

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Solution

The fourth proportional to 42,747, 64,125.63 and 17,803.95 is: 26,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747 : 64,125.63 = 17,803.95 : x
  2. Step 2: Convert to fraction form
    42,747/64,125.63 = 17,803.95/x
  3. Step 3: Cross multiply
    42,747x = 64,125.63 × 17,803.95
  4. Step 4: Simplify right side
    42,747x = 1,141,689,510.24
  5. Step 5: Solve for x
    x = 1,141,689,510.24/42,747
  6. Step 6: Final answer
    x = 26,708.06

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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.