Home / 74,501.72-102,811.83-40,510.23

Finding the Fourth Proportional to 74,501.72, 102,811.83 and 40,510.23

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Solution

The fourth proportional to 74,501.72, 102,811.83 and 40,510.23 is: 55,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,501.72 : 102,811.83 = 40,510.23 : x
  2. Step 2: Convert to fraction form
    74,501.72/102,811.83 = 40,510.23/x
  3. Step 3: Cross multiply
    74,501.72x = 102,811.83 × 40,510.23
  4. Step 4: Simplify right side
    74,501.72x = 4,164,930,964.69
  5. Step 5: Solve for x
    x = 4,164,930,964.69/74,501.72
  6. Step 6: Final answer
    x = 55,903.82

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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.