Home / 55,686.69-76,882.64-38,685.47

Finding the Fourth Proportional to 55,686.69, 76,882.64 and 38,685.47

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Solution

The fourth proportional to 55,686.69, 76,882.64 and 38,685.47 is: 53,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,686.69 : 76,882.64 = 38,685.47 : x
  2. Step 2: Convert to fraction form
    55,686.69/76,882.64 = 38,685.47/x
  3. Step 3: Cross multiply
    55,686.69x = 76,882.64 × 38,685.47
  4. Step 4: Simplify right side
    55,686.69x = 2,974,240,485.40
  5. Step 5: Solve for x
    x = 2,974,240,485.40/55,686.69
  6. Step 6: Final answer
    x = 53,410.26

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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.