Home / 81,459.08-112,408.89-47,473.10

Finding the Fourth Proportional to 81,459.08, 112,408.89 and 47,473.10

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Solution

The fourth proportional to 81,459.08, 112,408.89 and 47,473.10 is: 65,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459.08 : 112,408.89 = 47,473.10 : x
  2. Step 2: Convert to fraction form
    81,459.08/112,408.89 = 47,473.10/x
  3. Step 3: Cross multiply
    81,459.08x = 112,408.89 × 47,473.10
  4. Step 4: Simplify right side
    81,459.08x = 5,336,398,475.86
  5. Step 5: Solve for x
    x = 5,336,398,475.86/81,459.08
  6. Step 6: Final answer
    x = 65,510.17

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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.