Home / 52,283.64-78,425.72-12,840.78

Finding the Fourth Proportional to 52,283.64, 78,425.72 and 12,840.78

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Solution

The fourth proportional to 52,283.64, 78,425.72 and 12,840.78 is: 19,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,283.64 : 78,425.72 = 12,840.78 : x
  2. Step 2: Convert to fraction form
    52,283.64/78,425.72 = 12,840.78/x
  3. Step 3: Cross multiply
    52,283.64x = 78,425.72 × 12,840.78
  4. Step 4: Simplify right side
    52,283.64x = 1,007,047,416.86
  5. Step 5: Solve for x
    x = 1,007,047,416.86/52,283.64
  6. Step 6: Final answer
    x = 19,261.23

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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.