Home / 53,870.15-74,336.04-31,201.90

Finding the Fourth Proportional to 53,870.15, 74,336.04 and 31,201.90

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Solution

The fourth proportional to 53,870.15, 74,336.04 and 31,201.90 is: 43,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,870.15 : 74,336.04 = 31,201.90 : x
  2. Step 2: Convert to fraction form
    53,870.15/74,336.04 = 31,201.90/x
  3. Step 3: Cross multiply
    53,870.15x = 74,336.04 × 31,201.90
  4. Step 4: Simplify right side
    53,870.15x = 2,319,425,500.64
  5. Step 5: Solve for x
    x = 2,319,425,500.64/53,870.15
  6. Step 6: Final answer
    x = 43,055.86

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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.