Home / 90,603.30-125,035.47-50,317.55

Finding the Fourth Proportional to 90,603.30, 125,035.47 and 50,317.55

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Solution

The fourth proportional to 90,603.30, 125,035.47 and 50,317.55 is: 69,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,603.30 : 125,035.47 = 50,317.55 : x
  2. Step 2: Convert to fraction form
    90,603.30/125,035.47 = 50,317.55/x
  3. Step 3: Cross multiply
    90,603.30x = 125,035.47 × 50,317.55
  4. Step 4: Simplify right side
    90,603.30x = 6,291,477,888.32
  5. Step 5: Solve for x
    x = 6,291,477,888.32/90,603.30
  6. Step 6: Final answer
    x = 69,439.83

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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.