Home / 81,457.08-112,406.13-47,471.10

Finding the Fourth Proportional to 81,457.08, 112,406.13 and 47,471.10

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Solution

The fourth proportional to 81,457.08, 112,406.13 and 47,471.10 is: 65,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,457.08 : 112,406.13 = 47,471.10 : x
  2. Step 2: Convert to fraction form
    81,457.08/112,406.13 = 47,471.10/x
  3. Step 3: Cross multiply
    81,457.08x = 112,406.13 × 47,471.10
  4. Step 4: Simplify right side
    81,457.08x = 5,336,042,216.32
  5. Step 5: Solve for x
    x = 5,336,042,216.32/81,457.08
  6. Step 6: Final answer
    x = 65,507.41

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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.