Home / 72,459.24-99,998.60-40,630.20

Finding the Fourth Proportional to 72,459.24, 99,998.60 and 40,630.20

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Solution

The fourth proportional to 72,459.24, 99,998.60 and 40,630.20 is: 56,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,459.24 : 99,998.60 = 40,630.20 : x
  2. Step 2: Convert to fraction form
    72,459.24/99,998.60 = 40,630.20/x
  3. Step 3: Cross multiply
    72,459.24x = 99,998.60 × 40,630.20
  4. Step 4: Simplify right side
    72,459.24x = 4,062,963,117.72
  5. Step 5: Solve for x
    x = 4,062,963,117.72/72,459.24
  6. Step 6: Final answer
    x = 56,072.39

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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.