Home / 60,142.08-90,212.72-47,005.50

Finding the Fourth Proportional to 60,142.08, 90,212.72 and 47,005.50

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Solution

The fourth proportional to 60,142.08, 90,212.72 and 47,005.50 is: 70,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,142.08 : 90,212.72 = 47,005.50 : x
  2. Step 2: Convert to fraction form
    60,142.08/90,212.72 = 47,005.50/x
  3. Step 3: Cross multiply
    60,142.08x = 90,212.72 × 47,005.50
  4. Step 4: Simplify right side
    60,142.08x = 4,240,493,774.93
  5. Step 5: Solve for x
    x = 4,240,493,774.93/60,142.08
  6. Step 6: Final answer
    x = 70,507.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.