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Finding the Fourth Proportional to 65,303.91, 90,120.47 and 37,008.99

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Solution

The fourth proportional to 65,303.91, 90,120.47 and 37,008.99 is: 51,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,303.91 : 90,120.47 = 37,008.99 : x
  2. Step 2: Convert to fraction form
    65,303.91/90,120.47 = 37,008.99/x
  3. Step 3: Cross multiply
    65,303.91x = 90,120.47 × 37,008.99
  4. Step 4: Simplify right side
    65,303.91x = 3,335,267,387.98
  5. Step 5: Solve for x
    x = 3,335,267,387.98/65,303.91
  6. Step 6: Final answer
    x = 51,073.01

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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.