Home / 72,462.09-99,999.66-40,630.32

Finding the Fourth Proportional to 72,462.09, 99,999.66 and 40,630.32

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Solution

The fourth proportional to 72,462.09, 99,999.66 and 40,630.32 is: 56,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.09 : 99,999.66 = 40,630.32 : x
  2. Step 2: Convert to fraction form
    72,462.09/99,999.66 = 40,630.32/x
  3. Step 3: Cross multiply
    72,462.09x = 99,999.66 × 40,630.32
  4. Step 4: Simplify right side
    72,462.09x = 4,063,018,185.69
  5. Step 5: Solve for x
    x = 4,063,018,185.69/72,462.09
  6. Step 6: Final answer
    x = 56,070.95

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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.