Home / 72,463.36-99,999.90-40,632.76

Finding the Fourth Proportional to 72,463.36, 99,999.90 and 40,632.76

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Solution

The fourth proportional to 72,463.36, 99,999.90 and 40,632.76 is: 56,073.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,463.36 : 99,999.90 = 40,632.76 : x
  2. Step 2: Convert to fraction form
    72,463.36/99,999.90 = 40,632.76/x
  3. Step 3: Cross multiply
    72,463.36x = 99,999.90 × 40,632.76
  4. Step 4: Simplify right side
    72,463.36x = 4,063,271,936.72
  5. Step 5: Solve for x
    x = 4,063,271,936.72/72,463.36
  6. Step 6: Final answer
    x = 56,073.47

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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.