Home / 56,683.55-78,223.38-31,533.05

Finding the Fourth Proportional to 56,683.55, 78,223.38 and 31,533.05

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Solution

The fourth proportional to 56,683.55, 78,223.38 and 31,533.05 is: 43,515.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,683.55 : 78,223.38 = 31,533.05 : x
  2. Step 2: Convert to fraction form
    56,683.55/78,223.38 = 31,533.05/x
  3. Step 3: Cross multiply
    56,683.55x = 78,223.38 × 31,533.05
  4. Step 4: Simplify right side
    56,683.55x = 2,466,621,830.02
  5. Step 5: Solve for x
    x = 2,466,621,830.02/56,683.55
  6. Step 6: Final answer
    x = 43,515.65

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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.