Home / 90,953.48-136,423.56-28,641.80

Finding the Fourth Proportional to 90,953.48, 136,423.56 and 28,641.80

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Solution

The fourth proportional to 90,953.48, 136,423.56 and 28,641.80 is: 42,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,953.48 : 136,423.56 = 28,641.80 : x
  2. Step 2: Convert to fraction form
    90,953.48/136,423.56 = 28,641.80/x
  3. Step 3: Cross multiply
    90,953.48x = 136,423.56 × 28,641.80
  4. Step 4: Simplify right side
    90,953.48x = 3,907,416,320.81
  5. Step 5: Solve for x
    x = 3,907,416,320.81/90,953.48
  6. Step 6: Final answer
    x = 42,960.60

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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.