Home / 56,718.24-78,269.84-31,567.20

Finding the Fourth Proportional to 56,718.24, 78,269.84 and 31,567.20

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Solution

The fourth proportional to 56,718.24, 78,269.84 and 31,567.20 is: 43,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,718.24 : 78,269.84 = 31,567.20 : x
  2. Step 2: Convert to fraction form
    56,718.24/78,269.84 = 31,567.20/x
  3. Step 3: Cross multiply
    56,718.24x = 78,269.84 × 31,567.20
  4. Step 4: Simplify right side
    56,718.24x = 2,470,759,693.25
  5. Step 5: Solve for x
    x = 2,470,759,693.25/56,718.24
  6. Step 6: Final answer
    x = 43,562.00

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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.