Home / 52,431.18-78,646.59-21,266.34

Finding the Fourth Proportional to 52,431.18, 78,646.59 and 21,266.34

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Solution

The fourth proportional to 52,431.18, 78,646.59 and 21,266.34 is: 31,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,431.18 : 78,646.59 = 21,266.34 : x
  2. Step 2: Convert to fraction form
    52,431.18/78,646.59 = 21,266.34/x
  3. Step 3: Cross multiply
    52,431.18x = 78,646.59 × 21,266.34
  4. Step 4: Simplify right side
    52,431.18x = 1,672,525,122.78
  5. Step 5: Solve for x
    x = 1,672,525,122.78/52,431.18
  6. Step 6: Final answer
    x = 31,899.44

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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.