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Finding the Fourth Proportional to 65,457.55, 90,328.26 and 37,162.63

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Solution

The fourth proportional to 65,457.55, 90,328.26 and 37,162.63 is: 51,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,457.55 : 90,328.26 = 37,162.63 : x
  2. Step 2: Convert to fraction form
    65,457.55/90,328.26 = 37,162.63/x
  3. Step 3: Cross multiply
    65,457.55x = 90,328.26 × 37,162.63
  4. Step 4: Simplify right side
    65,457.55x = 3,356,835,704.92
  5. Step 5: Solve for x
    x = 3,356,835,704.92/65,457.55
  6. Step 6: Final answer
    x = 51,282.64

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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.