Home / 51,071.95-76,607.66-13,121.18

Finding the Fourth Proportional to 51,071.95, 76,607.66 and 13,121.18

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Solution

The fourth proportional to 51,071.95, 76,607.66 and 13,121.18 is: 19,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.95 : 76,607.66 = 13,121.18 : x
  2. Step 2: Convert to fraction form
    51,071.95/76,607.66 = 13,121.18/x
  3. Step 3: Cross multiply
    51,071.95x = 76,607.66 × 13,121.18
  4. Step 4: Simplify right side
    51,071.95x = 1,005,182,570.61
  5. Step 5: Solve for x
    x = 1,005,182,570.61/51,071.95
  6. Step 6: Final answer
    x = 19,681.70

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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.