Home / 90,212.48-124,462.88-52,455.68

Finding the Fourth Proportional to 90,212.48, 124,462.88 and 52,455.68

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Solution

The fourth proportional to 90,212.48, 124,462.88 and 52,455.68 is: 72,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,212.48 : 124,462.88 = 52,455.68 : x
  2. Step 2: Convert to fraction form
    90,212.48/124,462.88 = 52,455.68/x
  3. Step 3: Cross multiply
    90,212.48x = 124,462.88 × 52,455.68
  4. Step 4: Simplify right side
    90,212.48x = 6,528,785,005.16
  5. Step 5: Solve for x
    x = 6,528,785,005.16/90,212.48
  6. Step 6: Final answer
    x = 72,371.20

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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.