Home / 90,430.64-124,782.72-50,144.12

Finding the Fourth Proportional to 90,430.64, 124,782.72 and 50,144.12

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Solution

The fourth proportional to 90,430.64, 124,782.72 and 50,144.12 is: 69,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,430.64 : 124,782.72 = 50,144.12 : x
  2. Step 2: Convert to fraction form
    90,430.64/124,782.72 = 50,144.12/x
  3. Step 3: Cross multiply
    90,430.64x = 124,782.72 × 50,144.12
  4. Step 4: Simplify right side
    90,430.64x = 6,257,119,685.61
  5. Step 5: Solve for x
    x = 6,257,119,685.61/90,430.64
  6. Step 6: Final answer
    x = 69,192.47

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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.