Home / 48,683.60-72,673.24-42,778.70

Finding the Fourth Proportional to 48,683.60, 72,673.24 and 42,778.70

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Solution

The fourth proportional to 48,683.60, 72,673.24 and 42,778.70 is: 63,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,683.60 : 72,673.24 = 42,778.70 : x
  2. Step 2: Convert to fraction form
    48,683.60/72,673.24 = 42,778.70/x
  3. Step 3: Cross multiply
    48,683.60x = 72,673.24 × 42,778.70
  4. Step 4: Simplify right side
    48,683.60x = 3,108,866,731.99
  5. Step 5: Solve for x
    x = 3,108,866,731.99/48,683.60
  6. Step 6: Final answer
    x = 63,858.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.