Home / 90,880.35-125,413.70-52,645.11

Finding the Fourth Proportional to 90,880.35, 125,413.70 and 52,645.11

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Solution

The fourth proportional to 90,880.35, 125,413.70 and 52,645.11 is: 72,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,880.35 : 125,413.70 = 52,645.11 : x
  2. Step 2: Convert to fraction form
    90,880.35/125,413.70 = 52,645.11/x
  3. Step 3: Cross multiply
    90,880.35x = 125,413.70 × 52,645.11
  4. Step 4: Simplify right side
    90,880.35x = 6,602,417,768.78
  5. Step 5: Solve for x
    x = 6,602,417,768.78/90,880.35
  6. Step 6: Final answer
    x = 72,649.56

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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.