Home / 56,378.56-84,561.36-18,937.12

Finding the Fourth Proportional to 56,378.56, 84,561.36 and 18,937.12

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Solution

The fourth proportional to 56,378.56, 84,561.36 and 18,937.12 is: 28,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,378.56 : 84,561.36 = 18,937.12 : x
  2. Step 2: Convert to fraction form
    56,378.56/84,561.36 = 18,937.12/x
  3. Step 3: Cross multiply
    56,378.56x = 84,561.36 × 18,937.12
  4. Step 4: Simplify right side
    56,378.56x = 1,601,348,621.68
  5. Step 5: Solve for x
    x = 1,601,348,621.68/56,378.56
  6. Step 6: Final answer
    x = 28,403.50

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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.