Home / 58,836.15-81,194.51-31,978.66

Finding the Fourth Proportional to 58,836.15, 81,194.51 and 31,978.66

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Solution

The fourth proportional to 58,836.15, 81,194.51 and 31,978.66 is: 44,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,836.15 : 81,194.51 = 31,978.66 : x
  2. Step 2: Convert to fraction form
    58,836.15/81,194.51 = 31,978.66/x
  3. Step 3: Cross multiply
    58,836.15x = 81,194.51 × 31,978.66
  4. Step 4: Simplify right side
    58,836.15x = 2,596,491,629.16
  5. Step 5: Solve for x
    x = 2,596,491,629.16/58,836.15
  6. Step 6: Final answer
    x = 44,130.89

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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.