Home / 51,785.42-71,457.59-28,809.81

Finding the Fourth Proportional to 51,785.42, 71,457.59 and 28,809.81

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Solution

The fourth proportional to 51,785.42, 71,457.59 and 28,809.81 is: 39,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,785.42 : 71,457.59 = 28,809.81 : x
  2. Step 2: Convert to fraction form
    51,785.42/71,457.59 = 28,809.81/x
  3. Step 3: Cross multiply
    51,785.42x = 71,457.59 × 28,809.81
  4. Step 4: Simplify right side
    51,785.42x = 2,058,679,446.91
  5. Step 5: Solve for x
    x = 2,058,679,446.91/51,785.42
  6. Step 6: Final answer
    x = 39,754.04

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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.