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Finding the Fourth Proportional to 72,726.98, 100,362.04 and 40,461.23

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Solution

The fourth proportional to 72,726.98, 100,362.04 and 40,461.23 is: 55,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726.98 : 100,362.04 = 40,461.23 : x
  2. Step 2: Convert to fraction form
    72,726.98/100,362.04 = 40,461.23/x
  3. Step 3: Cross multiply
    72,726.98x = 100,362.04 × 40,461.23
  4. Step 4: Simplify right side
    72,726.98x = 4,060,771,733.46
  5. Step 5: Solve for x
    x = 4,060,771,733.46/72,726.98
  6. Step 6: Final answer
    x = 55,835.84

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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.