Home / 90,448.36-124,880.60-56,508.56

Finding the Fourth Proportional to 90,448.36, 124,880.60 and 56,508.56

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Solution

The fourth proportional to 90,448.36, 124,880.60 and 56,508.56 is: 78,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,448.36 : 124,880.60 = 56,508.56 : x
  2. Step 2: Convert to fraction form
    90,448.36/124,880.60 = 56,508.56/x
  3. Step 3: Cross multiply
    90,448.36x = 124,880.60 × 56,508.56
  4. Step 4: Simplify right side
    90,448.36x = 7,056,822,877.94
  5. Step 5: Solve for x
    x = 7,056,822,877.94/90,448.36
  6. Step 6: Final answer
    x = 78,020.46

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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.