Home / 51,276.85-70,741.01-31,130.53

Finding the Fourth Proportional to 51,276.85, 70,741.01 and 31,130.53

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Solution

The fourth proportional to 51,276.85, 70,741.01 and 31,130.53 is: 42,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,276.85 : 70,741.01 = 31,130.53 : x
  2. Step 2: Convert to fraction form
    51,276.85/70,741.01 = 31,130.53/x
  3. Step 3: Cross multiply
    51,276.85x = 70,741.01 × 31,130.53
  4. Step 4: Simplify right side
    51,276.85x = 2,202,205,035.01
  5. Step 5: Solve for x
    x = 2,202,205,035.01/51,276.85
  6. Step 6: Final answer
    x = 42,947.36

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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.