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Finding the Fourth Proportional to 67,457.70, 93,103.80 and 40,235.54

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Solution

The fourth proportional to 67,457.70, 93,103.80 and 40,235.54 is: 55,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,457.70 : 93,103.80 = 40,235.54 : x
  2. Step 2: Convert to fraction form
    67,457.70/93,103.80 = 40,235.54/x
  3. Step 3: Cross multiply
    67,457.70x = 93,103.80 × 40,235.54
  4. Step 4: Simplify right side
    67,457.70x = 3,746,081,203.53
  5. Step 5: Solve for x
    x = 3,746,081,203.53/67,457.70
  6. Step 6: Final answer
    x = 55,532.30

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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.