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Finding the Fourth Proportional to 53,703.40, 80,457.90 and 45,927.40

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Solution

The fourth proportional to 53,703.40, 80,457.90 and 45,927.40 is: 68,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,703.40 : 80,457.90 = 45,927.40 : x
  2. Step 2: Convert to fraction form
    53,703.40/80,457.90 = 45,927.40/x
  3. Step 3: Cross multiply
    53,703.40x = 80,457.90 × 45,927.40
  4. Step 4: Simplify right side
    53,703.40x = 3,695,222,156.46
  5. Step 5: Solve for x
    x = 3,695,222,156.46/53,703.40
  6. Step 6: Final answer
    x = 68,807.97

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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.