Home / 93,731.78-129,349.86-51,290.31

Finding the Fourth Proportional to 93,731.78, 129,349.86 and 51,290.31

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Solution

The fourth proportional to 93,731.78, 129,349.86 and 51,290.31 is: 70,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,731.78 : 129,349.86 = 51,290.31 : x
  2. Step 2: Convert to fraction form
    93,731.78/129,349.86 = 51,290.31/x
  3. Step 3: Cross multiply
    93,731.78x = 129,349.86 × 51,290.31
  4. Step 4: Simplify right side
    93,731.78x = 6,634,394,417.86
  5. Step 5: Solve for x
    x = 6,634,394,417.86/93,731.78
  6. Step 6: Final answer
    x = 70,780.63

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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.