Home / 90,275.23-124,571.12-53,969.50

Finding the Fourth Proportional to 90,275.23, 124,571.12 and 53,969.50

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Solution

The fourth proportional to 90,275.23, 124,571.12 and 53,969.50 is: 74,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,275.23 : 124,571.12 = 53,969.50 : x
  2. Step 2: Convert to fraction form
    90,275.23/124,571.12 = 53,969.50/x
  3. Step 3: Cross multiply
    90,275.23x = 124,571.12 × 53,969.50
  4. Step 4: Simplify right side
    90,275.23x = 6,723,041,060.84
  5. Step 5: Solve for x
    x = 6,723,041,060.84/90,275.23
  6. Step 6: Final answer
    x = 74,472.71

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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.