Home / 51,686.02-77,529.33-18,407.38

Finding the Fourth Proportional to 51,686.02, 77,529.33 and 18,407.38

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Solution

The fourth proportional to 51,686.02, 77,529.33 and 18,407.38 is: 27,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,686.02 : 77,529.33 = 18,407.38 : x
  2. Step 2: Convert to fraction form
    51,686.02/77,529.33 = 18,407.38/x
  3. Step 3: Cross multiply
    51,686.02x = 77,529.33 × 18,407.38
  4. Step 4: Simplify right side
    51,686.02x = 1,427,111,838.46
  5. Step 5: Solve for x
    x = 1,427,111,838.46/51,686.02
  6. Step 6: Final answer
    x = 27,611.18

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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.