Home / 52,915.64-78,858.12-51,313.72

Finding the Fourth Proportional to 52,915.64, 78,858.12 and 51,313.72

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Solution

The fourth proportional to 52,915.64, 78,858.12 and 51,313.72 is: 76,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,915.64 : 78,858.12 = 51,313.72 : x
  2. Step 2: Convert to fraction form
    52,915.64/78,858.12 = 51,313.72/x
  3. Step 3: Cross multiply
    52,915.64x = 78,858.12 × 51,313.72
  4. Step 4: Simplify right side
    52,915.64x = 4,046,503,489.41
  5. Step 5: Solve for x
    x = 4,046,503,489.41/52,915.64
  6. Step 6: Final answer
    x = 76,470.84

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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.