Home / 90,646.11-125,077.77-50,356.17

Finding the Fourth Proportional to 90,646.11, 125,077.77 and 50,356.17

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Solution

The fourth proportional to 90,646.11, 125,077.77 and 50,356.17 is: 69,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,646.11 : 125,077.77 = 50,356.17 : x
  2. Step 2: Convert to fraction form
    90,646.11/125,077.77 = 50,356.17/x
  3. Step 3: Cross multiply
    90,646.11x = 125,077.77 × 50,356.17
  4. Step 4: Simplify right side
    90,646.11x = 6,298,437,449.34
  5. Step 5: Solve for x
    x = 6,298,437,449.34/90,646.11
  6. Step 6: Final answer
    x = 69,483.81

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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.