Home / 55,857.50-77,083.36-30,706.46

Finding the Fourth Proportional to 55,857.50, 77,083.36 and 30,706.46

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Solution

The fourth proportional to 55,857.50, 77,083.36 and 30,706.46 is: 42,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,857.50 : 77,083.36 = 30,706.46 : x
  2. Step 2: Convert to fraction form
    55,857.50/77,083.36 = 30,706.46/x
  3. Step 3: Cross multiply
    55,857.50x = 77,083.36 × 30,706.46
  4. Step 4: Simplify right side
    55,857.50x = 2,366,957,110.51
  5. Step 5: Solve for x
    x = 2,366,957,110.51/55,857.50
  6. Step 6: Final answer
    x = 42,374.92

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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.