Home / 42,106.08-63,162.96-31,148.64

Finding the Fourth Proportional to 42,106.08, 63,162.96 and 31,148.64

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Solution

The fourth proportional to 42,106.08, 63,162.96 and 31,148.64 is: 46,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,106.08 : 63,162.96 = 31,148.64 : x
  2. Step 2: Convert to fraction form
    42,106.08/63,162.96 = 31,148.64/x
  3. Step 3: Cross multiply
    42,106.08x = 63,162.96 × 31,148.64
  4. Step 4: Simplify right side
    42,106.08x = 1,967,440,302.37
  5. Step 5: Solve for x
    x = 1,967,440,302.37/42,106.08
  6. Step 6: Final answer
    x = 46,725.80

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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.