Home / 91,829.21-126,714.57-51,547.41

Finding the Fourth Proportional to 91,829.21, 126,714.57 and 51,547.41

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Solution

The fourth proportional to 91,829.21, 126,714.57 and 51,547.41 is: 71,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,829.21 : 126,714.57 = 51,547.41 : x
  2. Step 2: Convert to fraction form
    91,829.21/126,714.57 = 51,547.41/x
  3. Step 3: Cross multiply
    91,829.21x = 126,714.57 × 51,547.41
  4. Step 4: Simplify right side
    91,829.21x = 6,531,807,892.76
  5. Step 5: Solve for x
    x = 6,531,807,892.76/91,829.21
  6. Step 6: Final answer
    x = 71,129.96

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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.