Home / 55,972.08-77,242.68-30,821.04

Finding the Fourth Proportional to 55,972.08, 77,242.68 and 30,821.04

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Solution

The fourth proportional to 55,972.08, 77,242.68 and 30,821.04 is: 42,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,972.08 : 77,242.68 = 30,821.04 : x
  2. Step 2: Convert to fraction form
    55,972.08/77,242.68 = 30,821.04/x
  3. Step 3: Cross multiply
    55,972.08x = 77,242.68 × 30,821.04
  4. Step 4: Simplify right side
    55,972.08x = 2,380,699,729.99
  5. Step 5: Solve for x
    x = 2,380,699,729.99/55,972.08
  6. Step 6: Final answer
    x = 42,533.70

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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.