Home / 55,821.50-77,033.70-30,672.62

Finding the Fourth Proportional to 55,821.50, 77,033.70 and 30,672.62

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Solution

The fourth proportional to 55,821.50, 77,033.70 and 30,672.62 is: 42,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,821.50 : 77,033.70 = 30,672.62 : x
  2. Step 2: Convert to fraction form
    55,821.50/77,033.70 = 30,672.62/x
  3. Step 3: Cross multiply
    55,821.50x = 77,033.70 × 30,672.62
  4. Step 4: Simplify right side
    55,821.50x = 2,362,825,407.29
  5. Step 5: Solve for x
    x = 2,362,825,407.29/55,821.50
  6. Step 6: Final answer
    x = 42,328.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.