Home / 55,911.80-77,143.02-38,896.94

Finding the Fourth Proportional to 55,911.80, 77,143.02 and 38,896.94

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Solution

The fourth proportional to 55,911.80, 77,143.02 and 38,896.94 is: 53,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,911.80 : 77,143.02 = 38,896.94 : x
  2. Step 2: Convert to fraction form
    55,911.80/77,143.02 = 38,896.94/x
  3. Step 3: Cross multiply
    55,911.80x = 77,143.02 × 38,896.94
  4. Step 4: Simplify right side
    55,911.80x = 3,000,627,420.36
  5. Step 5: Solve for x
    x = 3,000,627,420.36/55,911.80
  6. Step 6: Final answer
    x = 53,667.16

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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.