Home / 52,406.16-72,320.78-31,186.20

Finding the Fourth Proportional to 52,406.16, 72,320.78 and 31,186.20

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Solution

The fourth proportional to 52,406.16, 72,320.78 and 31,186.20 is: 43,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,406.16 : 72,320.78 = 31,186.20 : x
  2. Step 2: Convert to fraction form
    52,406.16/72,320.78 = 31,186.20/x
  3. Step 3: Cross multiply
    52,406.16x = 72,320.78 × 31,186.20
  4. Step 4: Simplify right side
    52,406.16x = 2,255,410,309.24
  5. Step 5: Solve for x
    x = 2,255,410,309.24/52,406.16
  6. Step 6: Final answer
    x = 43,037.12

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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.