Home / 55,436.16-76,346.40-51,878.64

Finding the Fourth Proportional to 55,436.16, 76,346.40 and 51,878.64

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Solution

The fourth proportional to 55,436.16, 76,346.40 and 51,878.64 is: 71,447.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,436.16 : 76,346.40 = 51,878.64 : x
  2. Step 2: Convert to fraction form
    55,436.16/76,346.40 = 51,878.64/x
  3. Step 3: Cross multiply
    55,436.16x = 76,346.40 × 51,878.64
  4. Step 4: Simplify right side
    55,436.16x = 3,960,747,400.90
  5. Step 5: Solve for x
    x = 3,960,747,400.90/55,436.16
  6. Step 6: Final answer
    x = 71,447.00

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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.