Home / 90,531.14-135,802.78-23,970.40

Finding the Fourth Proportional to 90,531.14, 135,802.78 and 23,970.40

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Solution

The fourth proportional to 90,531.14, 135,802.78 and 23,970.40 is: 35,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,531.14 : 135,802.78 = 23,970.40 : x
  2. Step 2: Convert to fraction form
    90,531.14/135,802.78 = 23,970.40/x
  3. Step 3: Cross multiply
    90,531.14x = 135,802.78 × 23,970.40
  4. Step 4: Simplify right side
    90,531.14x = 3,255,246,558.28
  5. Step 5: Solve for x
    x = 3,255,246,558.28/90,531.14
  6. Step 6: Final answer
    x = 35,957.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.