Home / 55,805.12-77,011.64-30,311.74

Finding the Fourth Proportional to 55,805.12, 77,011.64 and 30,311.74

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Solution

The fourth proportional to 55,805.12, 77,011.64 and 30,311.74 is: 41,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,805.12 : 77,011.64 = 30,311.74 : x
  2. Step 2: Convert to fraction form
    55,805.12/77,011.64 = 30,311.74/x
  3. Step 3: Cross multiply
    55,805.12x = 77,011.64 × 30,311.74
  4. Step 4: Simplify right side
    55,805.12x = 2,334,356,808.65
  5. Step 5: Solve for x
    x = 2,334,356,808.65/55,805.12
  6. Step 6: Final answer
    x = 41,830.51

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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.