Home / 51,021.12-70,444.20-31,909.20

Finding the Fourth Proportional to 51,021.12, 70,444.20 and 31,909.20

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Solution

The fourth proportional to 51,021.12, 70,444.20 and 31,909.20 is: 44,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,021.12 : 70,444.20 = 31,909.20 : x
  2. Step 2: Convert to fraction form
    51,021.12/70,444.20 = 31,909.20/x
  3. Step 3: Cross multiply
    51,021.12x = 70,444.20 × 31,909.20
  4. Step 4: Simplify right side
    51,021.12x = 2,247,818,066.64
  5. Step 5: Solve for x
    x = 2,247,818,066.64/51,021.12
  6. Step 6: Final answer
    x = 44,056.62

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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.