Home / 58,788.42-81,128.64-31,931.45

Finding the Fourth Proportional to 58,788.42, 81,128.64 and 31,931.45

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Solution

The fourth proportional to 58,788.42, 81,128.64 and 31,931.45 is: 44,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,788.42 : 81,128.64 = 31,931.45 : x
  2. Step 2: Convert to fraction form
    58,788.42/81,128.64 = 31,931.45/x
  3. Step 3: Cross multiply
    58,788.42x = 81,128.64 × 31,931.45
  4. Step 4: Simplify right side
    58,788.42x = 2,590,554,706.08
  5. Step 5: Solve for x
    x = 2,590,554,706.08/58,788.42
  6. Step 6: Final answer
    x = 44,065.73

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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.