Home / 90,935.86-125,448.03-70,653.95

Finding the Fourth Proportional to 90,935.86, 125,448.03 and 70,653.95

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Solution

The fourth proportional to 90,935.86, 125,448.03 and 70,653.95 is: 97,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.86 : 125,448.03 = 70,653.95 : x
  2. Step 2: Convert to fraction form
    90,935.86/125,448.03 = 70,653.95/x
  3. Step 3: Cross multiply
    90,935.86x = 125,448.03 × 70,653.95
  4. Step 4: Simplify right side
    90,935.86x = 8,863,398,211.98
  5. Step 5: Solve for x
    x = 8,863,398,211.98/90,935.86
  6. Step 6: Final answer
    x = 97,468.68

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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.