Home / 55,885.79-77,102.80-31,683.21

Finding the Fourth Proportional to 55,885.79, 77,102.80 and 31,683.21

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Solution

The fourth proportional to 55,885.79, 77,102.80 and 31,683.21 is: 43,711.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,885.79 : 77,102.80 = 31,683.21 : x
  2. Step 2: Convert to fraction form
    55,885.79/77,102.80 = 31,683.21/x
  3. Step 3: Cross multiply
    55,885.79x = 77,102.80 × 31,683.21
  4. Step 4: Simplify right side
    55,885.79x = 2,442,864,203.99
  5. Step 5: Solve for x
    x = 2,442,864,203.99/55,885.79
  6. Step 6: Final answer
    x = 43,711.72

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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.