Home / 56,075.87-84,089.19-20,990.92

Finding the Fourth Proportional to 56,075.87, 84,089.19 and 20,990.92

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Solution

The fourth proportional to 56,075.87, 84,089.19 and 20,990.92 is: 31,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,075.87 : 84,089.19 = 20,990.92 : x
  2. Step 2: Convert to fraction form
    56,075.87/84,089.19 = 20,990.92/x
  3. Step 3: Cross multiply
    56,075.87x = 84,089.19 × 20,990.92
  4. Step 4: Simplify right side
    56,075.87x = 1,765,109,486.32
  5. Step 5: Solve for x
    x = 1,765,109,486.32/56,075.87
  6. Step 6: Final answer
    x = 31,477.17

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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.