Home / 74,429.20-111,643.80-54,600.40

Finding the Fourth Proportional to 74,429.20, 111,643.80 and 54,600.40

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Solution

The fourth proportional to 74,429.20, 111,643.80 and 54,600.40 is: 81,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.20 : 111,643.80 = 54,600.40 : x
  2. Step 2: Convert to fraction form
    74,429.20/111,643.80 = 54,600.40/x
  3. Step 3: Cross multiply
    74,429.20x = 111,643.80 × 54,600.40
  4. Step 4: Simplify right side
    74,429.20x = 6,095,796,137.52
  5. Step 5: Solve for x
    x = 6,095,796,137.52/74,429.20
  6. Step 6: Final answer
    x = 81,900.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.