Home / 51,887.64-71,606.70-30,685.08

Finding the Fourth Proportional to 51,887.64, 71,606.70 and 30,685.08

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Solution

The fourth proportional to 51,887.64, 71,606.70 and 30,685.08 is: 42,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,887.64 : 71,606.70 = 30,685.08 : x
  2. Step 2: Convert to fraction form
    51,887.64/71,606.70 = 30,685.08/x
  3. Step 3: Cross multiply
    51,887.64x = 71,606.70 × 30,685.08
  4. Step 4: Simplify right side
    51,887.64x = 2,197,257,318.04
  5. Step 5: Solve for x
    x = 2,197,257,318.04/51,887.64
  6. Step 6: Final answer
    x = 42,346.45

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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.