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Finding the Fourth Proportional to 63,378.92, 87,457 and 37,880.28

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Solution

The fourth proportional to 63,378.92, 87,457 and 37,880.28 is: 52,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,378.92 : 87,457 = 37,880.28 : x
  2. Step 2: Convert to fraction form
    63,378.92/87,457 = 37,880.28/x
  3. Step 3: Cross multiply
    63,378.92x = 87,457 × 37,880.28
  4. Step 4: Simplify right side
    63,378.92x = 3,312,895,647.96
  5. Step 5: Solve for x
    x = 3,312,895,647.96/63,378.92
  6. Step 6: Final answer
    x = 52,271.25

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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.