Home / 61,686.81-85,271.27-55,038.33

Finding the Fourth Proportional to 61,686.81, 85,271.27 and 55,038.33

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Solution

The fourth proportional to 61,686.81, 85,271.27 and 55,038.33 is: 76,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,686.81 : 85,271.27 = 55,038.33 : x
  2. Step 2: Convert to fraction form
    61,686.81/85,271.27 = 55,038.33/x
  3. Step 3: Cross multiply
    61,686.81x = 85,271.27 × 55,038.33
  4. Step 4: Simplify right side
    61,686.81x = 4,693,188,022.59
  5. Step 5: Solve for x
    x = 4,693,188,022.59/61,686.81
  6. Step 6: Final answer
    x = 76,080.90

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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.