Home / 90,159.90-124,378.74-58,339.04

Finding the Fourth Proportional to 90,159.90, 124,378.74 and 58,339.04

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Solution

The fourth proportional to 90,159.90, 124,378.74 and 58,339.04 is: 80,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,159.90 : 124,378.74 = 58,339.04 : x
  2. Step 2: Convert to fraction form
    90,159.90/124,378.74 = 58,339.04/x
  3. Step 3: Cross multiply
    90,159.90x = 124,378.74 × 58,339.04
  4. Step 4: Simplify right side
    90,159.90x = 7,256,136,288.01
  5. Step 5: Solve for x
    x = 7,256,136,288.01/90,159.90
  6. Step 6: Final answer
    x = 80,480.75

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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.