Home / 78,588.06-117,889.08-22,427.11

Finding the Fourth Proportional to 78,588.06, 117,889.08 and 22,427.11

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Solution

The fourth proportional to 78,588.06, 117,889.08 and 22,427.11 is: 33,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588.06 : 117,889.08 = 22,427.11 : x
  2. Step 2: Convert to fraction form
    78,588.06/117,889.08 = 22,427.11/x
  3. Step 3: Cross multiply
    78,588.06x = 117,889.08 × 22,427.11
  4. Step 4: Simplify right side
    78,588.06x = 2,643,911,364.96
  5. Step 5: Solve for x
    x = 2,643,911,364.96/78,588.06
  6. Step 6: Final answer
    x = 33,642.66

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1.5x scale

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.