Home / 52,312.39-78,436.99-21,111.19

Finding the Fourth Proportional to 52,312.39, 78,436.99 and 21,111.19

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Solution

The fourth proportional to 52,312.39, 78,436.99 and 21,111.19 is: 31,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,312.39 : 78,436.99 = 21,111.19 : x
  2. Step 2: Convert to fraction form
    52,312.39/78,436.99 = 21,111.19/x
  3. Step 3: Cross multiply
    52,312.39x = 78,436.99 × 21,111.19
  4. Step 4: Simplify right side
    52,312.39x = 1,655,898,198.92
  5. Step 5: Solve for x
    x = 1,655,898,198.92/52,312.39
  6. Step 6: Final answer
    x = 31,654.03

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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.