Home / 53,657.40-74,050.57-30,997.35

Finding the Fourth Proportional to 53,657.40, 74,050.57 and 30,997.35

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Solution

The fourth proportional to 53,657.40, 74,050.57 and 30,997.35 is: 42,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,657.40 : 74,050.57 = 30,997.35 : x
  2. Step 2: Convert to fraction form
    53,657.40/74,050.57 = 30,997.35/x
  3. Step 3: Cross multiply
    53,657.40x = 74,050.57 × 30,997.35
  4. Step 4: Simplify right side
    53,657.40x = 2,295,371,474.74
  5. Step 5: Solve for x
    x = 2,295,371,474.74/53,657.40
  6. Step 6: Final answer
    x = 42,778.28

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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.