Home / 53,970.20-80,825.70-51,637.40

Finding the Fourth Proportional to 53,970.20, 80,825.70 and 51,637.40

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Solution

The fourth proportional to 53,970.20, 80,825.70 and 51,637.40 is: 77,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,970.20 : 80,825.70 = 51,637.40 : x
  2. Step 2: Convert to fraction form
    53,970.20/80,825.70 = 51,637.40/x
  3. Step 3: Cross multiply
    53,970.20x = 80,825.70 × 51,637.40
  4. Step 4: Simplify right side
    53,970.20x = 4,173,629,001.18
  5. Step 5: Solve for x
    x = 4,173,629,001.18/53,970.20
  6. Step 6: Final answer
    x = 77,332.10

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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.