Home / 52,012.95-78,063.66-20,445.12

Finding the Fourth Proportional to 52,012.95, 78,063.66 and 20,445.12

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Solution

The fourth proportional to 52,012.95, 78,063.66 and 20,445.12 is: 30,685.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,012.95 : 78,063.66 = 20,445.12 : x
  2. Step 2: Convert to fraction form
    52,012.95/78,063.66 = 20,445.12/x
  3. Step 3: Cross multiply
    52,012.95x = 78,063.66 × 20,445.12
  4. Step 4: Simplify right side
    52,012.95x = 1,596,020,896.34
  5. Step 5: Solve for x
    x = 1,596,020,896.34/52,012.95
  6. Step 6: Final answer
    x = 30,685.07

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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.