Home / 58,530.72-80,709.66-47,188.20

Finding the Fourth Proportional to 58,530.72, 80,709.66 and 47,188.20

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Solution

The fourth proportional to 58,530.72, 80,709.66 and 47,188.20 is: 65,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,530.72 : 80,709.66 = 47,188.20 : x
  2. Step 2: Convert to fraction form
    58,530.72/80,709.66 = 47,188.20/x
  3. Step 3: Cross multiply
    58,530.72x = 80,709.66 × 47,188.20
  4. Step 4: Simplify right side
    58,530.72x = 3,808,543,578.01
  5. Step 5: Solve for x
    x = 3,808,543,578.01/58,530.72
  6. Step 6: Final answer
    x = 65,069.14

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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.