Home / 53,710.64-80,488.16-30,287.28

Finding the Fourth Proportional to 53,710.64, 80,488.16 and 30,287.28

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Solution

The fourth proportional to 53,710.64, 80,488.16 and 30,287.28 is: 45,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,710.64 : 80,488.16 = 30,287.28 : x
  2. Step 2: Convert to fraction form
    53,710.64/80,488.16 = 30,287.28/x
  3. Step 3: Cross multiply
    53,710.64x = 80,488.16 × 30,287.28
  4. Step 4: Simplify right side
    53,710.64x = 2,437,767,438.60
  5. Step 5: Solve for x
    x = 2,437,767,438.60/53,710.64
  6. Step 6: Final answer
    x = 45,387.05

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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.