Home / 51,406.64-77,117.18-15,870.86

Finding the Fourth Proportional to 51,406.64, 77,117.18 and 15,870.86

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Solution

The fourth proportional to 51,406.64, 77,117.18 and 15,870.86 is: 23,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,406.64 : 77,117.18 = 15,870.86 : x
  2. Step 2: Convert to fraction form
    51,406.64/77,117.18 = 15,870.86/x
  3. Step 3: Cross multiply
    51,406.64x = 77,117.18 × 15,870.86
  4. Step 4: Simplify right side
    51,406.64x = 1,223,915,502.43
  5. Step 5: Solve for x
    x = 1,223,915,502.43/51,406.64
  6. Step 6: Final answer
    x = 23,808.51

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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.