Home / 45,420.48-62,626.64-31,087.22

Finding the Fourth Proportional to 45,420.48, 62,626.64 and 31,087.22

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Solution

The fourth proportional to 45,420.48, 62,626.64 and 31,087.22 is: 42,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.48 : 62,626.64 = 31,087.22 : x
  2. Step 2: Convert to fraction form
    45,420.48/62,626.64 = 31,087.22/x
  3. Step 3: Cross multiply
    45,420.48x = 62,626.64 × 31,087.22
  4. Step 4: Simplify right side
    45,420.48x = 1,946,887,666.97
  5. Step 5: Solve for x
    x = 1,946,887,666.97/45,420.48
  6. Step 6: Final answer
    x = 42,863.65

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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.