Home / 51,017.13-70,438.68-31,905.18

Finding the Fourth Proportional to 51,017.13, 70,438.68 and 31,905.18

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Solution

The fourth proportional to 51,017.13, 70,438.68 and 31,905.18 is: 44,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,017.13 : 70,438.68 = 31,905.18 : x
  2. Step 2: Convert to fraction form
    51,017.13/70,438.68 = 31,905.18/x
  3. Step 3: Cross multiply
    51,017.13x = 70,438.68 × 31,905.18
  4. Step 4: Simplify right side
    51,017.13x = 2,247,358,764.36
  5. Step 5: Solve for x
    x = 2,247,358,764.36/51,017.13
  6. Step 6: Final answer
    x = 44,051.06

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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.