Home / 72,927.95-100,639.67-40,664.84

Finding the Fourth Proportional to 72,927.95, 100,639.67 and 40,664.84

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Solution

The fourth proportional to 72,927.95, 100,639.67 and 40,664.84 is: 56,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.95 : 100,639.67 = 40,664.84 : x
  2. Step 2: Convert to fraction form
    72,927.95/100,639.67 = 40,664.84/x
  3. Step 3: Cross multiply
    72,927.95x = 100,639.67 × 40,664.84
  4. Step 4: Simplify right side
    72,927.95x = 4,092,495,371.68
  5. Step 5: Solve for x
    x = 4,092,495,371.68/72,927.95
  6. Step 6: Final answer
    x = 56,116.97

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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.