Home / 74,985.50-112,533.90-35,542.70

Finding the Fourth Proportional to 74,985.50, 112,533.90 and 35,542.70

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Solution

The fourth proportional to 74,985.50, 112,533.90 and 35,542.70 is: 53,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985.50 : 112,533.90 = 35,542.70 : x
  2. Step 2: Convert to fraction form
    74,985.50/112,533.90 = 35,542.70/x
  3. Step 3: Cross multiply
    74,985.50x = 112,533.90 × 35,542.70
  4. Step 4: Simplify right side
    74,985.50x = 3,999,758,647.53
  5. Step 5: Solve for x
    x = 3,999,758,647.53/74,985.50
  6. Step 6: Final answer
    x = 53,340.43

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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.