Home / 51,017.79-76,140.90-49,689.19

Finding the Fourth Proportional to 51,017.79, 76,140.90 and 49,689.19

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Solution

The fourth proportional to 51,017.79, 76,140.90 and 49,689.19 is: 74,158.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,017.79 : 76,140.90 = 49,689.19 : x
  2. Step 2: Convert to fraction form
    51,017.79/76,140.90 = 49,689.19/x
  3. Step 3: Cross multiply
    51,017.79x = 76,140.90 × 49,689.19
  4. Step 4: Simplify right side
    51,017.79x = 3,783,379,646.87
  5. Step 5: Solve for x
    x = 3,783,379,646.87/51,017.79
  6. Step 6: Final answer
    x = 74,158.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.