Home / 45,485.84-62,720.30-31,148.03

Finding the Fourth Proportional to 45,485.84, 62,720.30 and 31,148.03

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Solution

The fourth proportional to 45,485.84, 62,720.30 and 31,148.03 is: 42,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,485.84 : 62,720.30 = 31,148.03 : x
  2. Step 2: Convert to fraction form
    45,485.84/62,720.30 = 31,148.03/x
  3. Step 3: Cross multiply
    45,485.84x = 62,720.30 × 31,148.03
  4. Step 4: Simplify right side
    45,485.84x = 1,953,613,316.67
  5. Step 5: Solve for x
    x = 1,953,613,316.67/45,485.84
  6. Step 6: Final answer
    x = 42,949.93

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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.