Home / 51,412.19-70,950.42-28,752.12

Finding the Fourth Proportional to 51,412.19, 70,950.42 and 28,752.12

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Solution

The fourth proportional to 51,412.19, 70,950.42 and 28,752.12 is: 39,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,412.19 : 70,950.42 = 28,752.12 : x
  2. Step 2: Convert to fraction form
    51,412.19/70,950.42 = 28,752.12/x
  3. Step 3: Cross multiply
    51,412.19x = 70,950.42 × 28,752.12
  4. Step 4: Simplify right side
    51,412.19x = 2,039,974,989.89
  5. Step 5: Solve for x
    x = 2,039,974,989.89/51,412.19
  6. Step 6: Final answer
    x = 39,678.82

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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.