Home / 72,220.19-99,688.91-49,633.94

Finding the Fourth Proportional to 72,220.19, 99,688.91 and 49,633.94

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Solution

The fourth proportional to 72,220.19, 99,688.91 and 49,633.94 is: 68,512.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,220.19 : 99,688.91 = 49,633.94 : x
  2. Step 2: Convert to fraction form
    72,220.19/99,688.91 = 49,633.94/x
  3. Step 3: Cross multiply
    72,220.19x = 99,688.91 × 49,633.94
  4. Step 4: Simplify right side
    72,220.19x = 4,947,953,378.66
  5. Step 5: Solve for x
    x = 4,947,953,378.66/72,220.19
  6. Step 6: Final answer
    x = 68,512.06

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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.