Home / 55,829.01-77,043.63-30,679.05

Finding the Fourth Proportional to 55,829.01, 77,043.63 and 30,679.05

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Solution

The fourth proportional to 55,829.01, 77,043.63 and 30,679.05 is: 42,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,829.01 : 77,043.63 = 30,679.05 : x
  2. Step 2: Convert to fraction form
    55,829.01/77,043.63 = 30,679.05/x
  3. Step 3: Cross multiply
    55,829.01x = 77,043.63 × 30,679.05
  4. Step 4: Simplify right side
    55,829.01x = 2,363,625,376.95
  5. Step 5: Solve for x
    x = 2,363,625,376.95/55,829.01
  6. Step 6: Final answer
    x = 42,336.87

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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.