Home / 72,342.28-99,833.34-40,510.90

Finding the Fourth Proportional to 72,342.28, 99,833.34 and 40,510.90

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Solution

The fourth proportional to 72,342.28, 99,833.34 and 40,510.90 is: 55,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,342.28 : 99,833.34 = 40,510.90 : x
  2. Step 2: Convert to fraction form
    72,342.28/99,833.34 = 40,510.90/x
  3. Step 3: Cross multiply
    72,342.28x = 99,833.34 × 40,510.90
  4. Step 4: Simplify right side
    72,342.28x = 4,044,338,453.41
  5. Step 5: Solve for x
    x = 4,044,338,453.41/72,342.28
  6. Step 6: Final answer
    x = 55,905.60

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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.