Home / 49,639.40-74,459.10-28,644.20

Finding the Fourth Proportional to 49,639.40, 74,459.10 and 28,644.20

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Solution

The fourth proportional to 49,639.40, 74,459.10 and 28,644.20 is: 42,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,639.40 : 74,459.10 = 28,644.20 : x
  2. Step 2: Convert to fraction form
    49,639.40/74,459.10 = 28,644.20/x
  3. Step 3: Cross multiply
    49,639.40x = 74,459.10 × 28,644.20
  4. Step 4: Simplify right side
    49,639.40x = 2,132,821,352.22
  5. Step 5: Solve for x
    x = 2,132,821,352.22/49,639.40
  6. Step 6: Final answer
    x = 42,966.30

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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.