Home / 53,161.40-79,742.20-49,913.70

Finding the Fourth Proportional to 53,161.40, 79,742.20 and 49,913.70

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Solution

The fourth proportional to 53,161.40, 79,742.20 and 49,913.70 is: 74,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,161.40 : 79,742.20 = 49,913.70 : x
  2. Step 2: Convert to fraction form
    53,161.40/79,742.20 = 49,913.70/x
  3. Step 3: Cross multiply
    53,161.40x = 79,742.20 × 49,913.70
  4. Step 4: Simplify right side
    53,161.40x = 3,980,228,248.14
  5. Step 5: Solve for x
    x = 3,980,228,248.14/53,161.40
  6. Step 6: Final answer
    x = 74,870.64

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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.