Home / 55,815.08-77,023.50-30,320.84

Finding the Fourth Proportional to 55,815.08, 77,023.50 and 30,320.84

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Solution

The fourth proportional to 55,815.08, 77,023.50 and 30,320.84 is: 41,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,815.08 : 77,023.50 = 30,320.84 : x
  2. Step 2: Convert to fraction form
    55,815.08/77,023.50 = 30,320.84/x
  3. Step 3: Cross multiply
    55,815.08x = 77,023.50 × 30,320.84
  4. Step 4: Simplify right side
    55,815.08x = 2,335,417,219.74
  5. Step 5: Solve for x
    x = 2,335,417,219.74/55,815.08
  6. Step 6: Final answer
    x = 41,842.05

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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.