Home / 58,709.15-81,018.66-31,851.66

Finding the Fourth Proportional to 58,709.15, 81,018.66 and 31,851.66

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Solution

The fourth proportional to 58,709.15, 81,018.66 and 31,851.66 is: 43,955.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,709.15 : 81,018.66 = 31,851.66 : x
  2. Step 2: Convert to fraction form
    58,709.15/81,018.66 = 31,851.66/x
  3. Step 3: Cross multiply
    58,709.15x = 81,018.66 × 31,851.66
  4. Step 4: Simplify right side
    58,709.15x = 2,580,578,811.98
  5. Step 5: Solve for x
    x = 2,580,578,811.98/58,709.15
  6. Step 6: Final answer
    x = 43,955.31

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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.