Home / 55,994.49-77,271.74-30,500.78

Finding the Fourth Proportional to 55,994.49, 77,271.74 and 30,500.78

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Solution

The fourth proportional to 55,994.49, 77,271.74 and 30,500.78 is: 42,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,994.49 : 77,271.74 = 30,500.78 : x
  2. Step 2: Convert to fraction form
    55,994.49/77,271.74 = 30,500.78/x
  3. Step 3: Cross multiply
    55,994.49x = 77,271.74 × 30,500.78
  4. Step 4: Simplify right side
    55,994.49x = 2,356,847,803.09
  5. Step 5: Solve for x
    x = 2,356,847,803.09/55,994.49
  6. Step 6: Final answer
    x = 42,090.71

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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.