Home / 56,282.36-77,671.80-30,790.52

Finding the Fourth Proportional to 56,282.36, 77,671.80 and 30,790.52

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Solution

The fourth proportional to 56,282.36, 77,671.80 and 30,790.52 is: 42,492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,282.36 : 77,671.80 = 30,790.52 : x
  2. Step 2: Convert to fraction form
    56,282.36/77,671.80 = 30,790.52/x
  3. Step 3: Cross multiply
    56,282.36x = 77,671.80 × 30,790.52
  4. Step 4: Simplify right side
    56,282.36x = 2,391,555,111.34
  5. Step 5: Solve for x
    x = 2,391,555,111.34/56,282.36
  6. Step 6: Final answer
    x = 42,492.09

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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.