Home / 77,621.67-116,433.26-42,542.19

Finding the Fourth Proportional to 77,621.67, 116,433.26 and 42,542.19

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Solution

The fourth proportional to 77,621.67, 116,433.26 and 42,542.19 is: 63,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,621.67 : 116,433.26 = 42,542.19 : x
  2. Step 2: Convert to fraction form
    77,621.67/116,433.26 = 42,542.19/x
  3. Step 3: Cross multiply
    77,621.67x = 116,433.26 × 42,542.19
  4. Step 4: Simplify right side
    77,621.67x = 4,953,325,656.53
  5. Step 5: Solve for x
    x = 4,953,325,656.53/77,621.67
  6. Step 6: Final answer
    x = 63,813.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.