Home / 93,633.16-129,215.75-51,190.78

Finding the Fourth Proportional to 93,633.16, 129,215.75 and 51,190.78

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Solution

The fourth proportional to 93,633.16, 129,215.75 and 51,190.78 is: 70,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,633.16 : 129,215.75 = 51,190.78 : x
  2. Step 2: Convert to fraction form
    93,633.16/129,215.75 = 51,190.78/x
  3. Step 3: Cross multiply
    93,633.16x = 129,215.75 × 51,190.78
  4. Step 4: Simplify right side
    93,633.16x = 6,614,655,030.79
  5. Step 5: Solve for x
    x = 6,614,655,030.79/93,633.16
  6. Step 6: Final answer
    x = 70,644.36

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1.5x scale

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.