Home / 55,980.45-77,251.86-30,487.10

Finding the Fourth Proportional to 55,980.45, 77,251.86 and 30,487.10

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Solution

The fourth proportional to 55,980.45, 77,251.86 and 30,487.10 is: 42,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,980.45 : 77,251.86 = 30,487.10 : x
  2. Step 2: Convert to fraction form
    55,980.45/77,251.86 = 30,487.10/x
  3. Step 3: Cross multiply
    55,980.45x = 77,251.86 × 30,487.10
  4. Step 4: Simplify right side
    55,980.45x = 2,355,184,794.75
  5. Step 5: Solve for x
    x = 2,355,184,794.75/55,980.45
  6. Step 6: Final answer
    x = 42,071.56

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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.