Home / 72,477.48-100,018.73-40,647.06

Finding the Fourth Proportional to 72,477.48, 100,018.73 and 40,647.06

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Solution

The fourth proportional to 72,477.48, 100,018.73 and 40,647.06 is: 56,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,477.48 : 100,018.73 = 40,647.06 : x
  2. Step 2: Convert to fraction form
    72,477.48/100,018.73 = 40,647.06/x
  3. Step 3: Cross multiply
    72,477.48x = 100,018.73 × 40,647.06
  4. Step 4: Simplify right side
    72,477.48x = 4,065,467,116.20
  5. Step 5: Solve for x
    x = 4,065,467,116.20/72,477.48
  6. Step 6: Final answer
    x = 56,092.83

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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.