Home / 90,402.06-124,762.20-50,128.46

Finding the Fourth Proportional to 90,402.06, 124,762.20 and 50,128.46

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Solution

The fourth proportional to 90,402.06, 124,762.20 and 50,128.46 is: 69,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,402.06 : 124,762.20 = 50,128.46 : x
  2. Step 2: Convert to fraction form
    90,402.06/124,762.20 = 50,128.46/x
  3. Step 3: Cross multiply
    90,402.06x = 124,762.20 × 50,128.46
  4. Step 4: Simplify right side
    90,402.06x = 6,254,136,952.21
  5. Step 5: Solve for x
    x = 6,254,136,952.21/90,402.06
  6. Step 6: Final answer
    x = 69,181.35

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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.