Home / 56,013.36-77,282.88-38,998.80

Finding the Fourth Proportional to 56,013.36, 77,282.88 and 38,998.80

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Solution

The fourth proportional to 56,013.36, 77,282.88 and 38,998.80 is: 53,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,013.36 : 77,282.88 = 38,998.80 : x
  2. Step 2: Convert to fraction form
    56,013.36/77,282.88 = 38,998.80/x
  3. Step 3: Cross multiply
    56,013.36x = 77,282.88 × 38,998.80
  4. Step 4: Simplify right side
    56,013.36x = 3,013,939,580.54
  5. Step 5: Solve for x
    x = 3,013,939,580.54/56,013.36
  6. Step 6: Final answer
    x = 53,807.51

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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.