Home / 56,539.36-78,024.36-31,389.04

Finding the Fourth Proportional to 56,539.36, 78,024.36 and 31,389.04

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Solution

The fourth proportional to 56,539.36, 78,024.36 and 31,389.04 is: 43,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,539.36 : 78,024.36 = 31,389.04 : x
  2. Step 2: Convert to fraction form
    56,539.36/78,024.36 = 31,389.04/x
  3. Step 3: Cross multiply
    56,539.36x = 78,024.36 × 31,389.04
  4. Step 4: Simplify right side
    56,539.36x = 2,449,109,757.01
  5. Step 5: Solve for x
    x = 2,449,109,757.01/56,539.36
  6. Step 6: Final answer
    x = 43,316.90

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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.