Home / 51,639.78-71,130.12-36,506.40

Finding the Fourth Proportional to 51,639.78, 71,130.12 and 36,506.40

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Solution

The fourth proportional to 51,639.78, 71,130.12 and 36,506.40 is: 50,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.78 : 71,130.12 = 36,506.40 : x
  2. Step 2: Convert to fraction form
    51,639.78/71,130.12 = 36,506.40/x
  3. Step 3: Cross multiply
    51,639.78x = 71,130.12 × 36,506.40
  4. Step 4: Simplify right side
    51,639.78x = 2,596,704,612.77
  5. Step 5: Solve for x
    x = 2,596,704,612.77/51,639.78
  6. Step 6: Final answer
    x = 50,284.97

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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.