Home / 53,405.49-80,038.15-39,299.48

Finding the Fourth Proportional to 53,405.49, 80,038.15 and 39,299.48

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Solution

The fourth proportional to 53,405.49, 80,038.15 and 39,299.48 is: 58,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,405.49 : 80,038.15 = 39,299.48 : x
  2. Step 2: Convert to fraction form
    53,405.49/80,038.15 = 39,299.48/x
  3. Step 3: Cross multiply
    53,405.49x = 80,038.15 × 39,299.48
  4. Step 4: Simplify right side
    53,405.49x = 3,145,457,274.97
  5. Step 5: Solve for x
    x = 3,145,457,274.97/53,405.49
  6. Step 6: Final answer
    x = 58,897.64

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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.