Home / 84,284.12-126,444.67-31,693.60

Finding the Fourth Proportional to 84,284.12, 126,444.67 and 31,693.60

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Solution

The fourth proportional to 84,284.12, 126,444.67 and 31,693.60 is: 47,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,284.12 : 126,444.67 = 31,693.60 : x
  2. Step 2: Convert to fraction form
    84,284.12/126,444.67 = 31,693.60/x
  3. Step 3: Cross multiply
    84,284.12x = 126,444.67 × 31,693.60
  4. Step 4: Simplify right side
    84,284.12x = 4,007,486,871.93
  5. Step 5: Solve for x
    x = 4,007,486,871.93/84,284.12
  6. Step 6: Final answer
    x = 47,547.35

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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.