Home / 72,184.66-99,602.67-40,353.82

Finding the Fourth Proportional to 72,184.66, 99,602.67 and 40,353.82

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Solution

The fourth proportional to 72,184.66, 99,602.67 and 40,353.82 is: 55,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,184.66 : 99,602.67 = 40,353.82 : x
  2. Step 2: Convert to fraction form
    72,184.66/99,602.67 = 40,353.82/x
  3. Step 3: Cross multiply
    72,184.66x = 99,602.67 × 40,353.82
  4. Step 4: Simplify right side
    72,184.66x = 4,019,348,216.70
  5. Step 5: Solve for x
    x = 4,019,348,216.70/72,184.66
  6. Step 6: Final answer
    x = 55,681.47

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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.