Home / 72,303.16-99,777.32-40,034.70

Finding the Fourth Proportional to 72,303.16, 99,777.32 and 40,034.70

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Solution

The fourth proportional to 72,303.16, 99,777.32 and 40,034.70 is: 55,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,303.16 : 99,777.32 = 40,034.70 : x
  2. Step 2: Convert to fraction form
    72,303.16/99,777.32 = 40,034.70/x
  3. Step 3: Cross multiply
    72,303.16x = 99,777.32 × 40,034.70
  4. Step 4: Simplify right side
    72,303.16x = 3,994,555,073.00
  5. Step 5: Solve for x
    x = 3,994,555,073.00/72,303.16
  6. Step 6: Final answer
    x = 55,247.31

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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.