Home / 90,335.44-124,574.52-68,880.16

Finding the Fourth Proportional to 90,335.44, 124,574.52 and 68,880.16

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Solution

The fourth proportional to 90,335.44, 124,574.52 and 68,880.16 is: 94,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,335.44 : 124,574.52 = 68,880.16 : x
  2. Step 2: Convert to fraction form
    90,335.44/124,574.52 = 68,880.16/x
  3. Step 3: Cross multiply
    90,335.44x = 124,574.52 × 68,880.16
  4. Step 4: Simplify right side
    90,335.44x = 8,580,712,869.52
  5. Step 5: Solve for x
    x = 8,580,712,869.52/90,335.44
  6. Step 6: Final answer
    x = 94,987.23

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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.