Home / 56,720.04-78,272.88-31,569.54

Finding the Fourth Proportional to 56,720.04, 78,272.88 and 31,569.54

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Solution

The fourth proportional to 56,720.04, 78,272.88 and 31,569.54 is: 43,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,720.04 : 78,272.88 = 31,569.54 : x
  2. Step 2: Convert to fraction form
    56,720.04/78,272.88 = 31,569.54/x
  3. Step 3: Cross multiply
    56,720.04x = 78,272.88 × 31,569.54
  4. Step 4: Simplify right side
    56,720.04x = 2,471,038,816.08
  5. Step 5: Solve for x
    x = 2,471,038,816.08/56,720.04
  6. Step 6: Final answer
    x = 43,565.53

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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.