Home / 55,060.14-75,984.80-31,186.30

Finding the Fourth Proportional to 55,060.14, 75,984.80 and 31,186.30

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Solution

The fourth proportional to 55,060.14, 75,984.80 and 31,186.30 is: 43,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,060.14 : 75,984.80 = 31,186.30 : x
  2. Step 2: Convert to fraction form
    55,060.14/75,984.80 = 31,186.30/x
  3. Step 3: Cross multiply
    55,060.14x = 75,984.80 × 31,186.30
  4. Step 4: Simplify right side
    55,060.14x = 2,369,684,768.24
  5. Step 5: Solve for x
    x = 2,369,684,768.24/55,060.14
  6. Step 6: Final answer
    x = 43,038.12

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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.