Home / 45,111.95-67,631.88-21,407.57

Finding the Fourth Proportional to 45,111.95, 67,631.88 and 21,407.57

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Solution

The fourth proportional to 45,111.95, 67,631.88 and 21,407.57 is: 32,094.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,111.95 : 67,631.88 = 21,407.57 : x
  2. Step 2: Convert to fraction form
    45,111.95/67,631.88 = 21,407.57/x
  3. Step 3: Cross multiply
    45,111.95x = 67,631.88 × 21,407.57
  4. Step 4: Simplify right side
    45,111.95x = 1,447,834,205.33
  5. Step 5: Solve for x
    x = 1,447,834,205.33/45,111.95
  6. Step 6: Final answer
    x = 32,094.25

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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.