Home / 58,788.74-81,129.06-31,931.78

Finding the Fourth Proportional to 58,788.74, 81,129.06 and 31,931.78

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Solution

The fourth proportional to 58,788.74, 81,129.06 and 31,931.78 is: 44,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,788.74 : 81,129.06 = 31,931.78 : x
  2. Step 2: Convert to fraction form
    58,788.74/81,129.06 = 31,931.78/x
  3. Step 3: Cross multiply
    58,788.74x = 81,129.06 × 31,931.78
  4. Step 4: Simplify right side
    58,788.74x = 2,590,594,889.88
  5. Step 5: Solve for x
    x = 2,590,594,889.88/58,788.74
  6. Step 6: Final answer
    x = 44,066.17

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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.