Home / 56,513.70-77,938.20-42,208.18

Finding the Fourth Proportional to 56,513.70, 77,938.20 and 42,208.18

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Solution

The fourth proportional to 56,513.70, 77,938.20 and 42,208.18 is: 58,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,513.70 : 77,938.20 = 42,208.18 : x
  2. Step 2: Convert to fraction form
    56,513.70/77,938.20 = 42,208.18/x
  3. Step 3: Cross multiply
    56,513.70x = 77,938.20 × 42,208.18
  4. Step 4: Simplify right side
    56,513.70x = 3,289,629,379.63
  5. Step 5: Solve for x
    x = 3,289,629,379.63/56,513.70
  6. Step 6: Final answer
    x = 58,209.41

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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.