Home / 52,045.25-78,071.82-20,440.07

Finding the Fourth Proportional to 52,045.25, 78,071.82 and 20,440.07

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Solution

The fourth proportional to 52,045.25, 78,071.82 and 20,440.07 is: 30,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,045.25 : 78,071.82 = 20,440.07 : x
  2. Step 2: Convert to fraction form
    52,045.25/78,071.82 = 20,440.07/x
  3. Step 3: Cross multiply
    52,045.25x = 78,071.82 × 20,440.07
  4. Step 4: Simplify right side
    52,045.25x = 1,595,793,075.47
  5. Step 5: Solve for x
    x = 1,595,793,075.47/52,045.25
  6. Step 6: Final answer
    x = 30,661.65

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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.