Home / 90,822.80-136,088.40-59,621.60

Finding the Fourth Proportional to 90,822.80, 136,088.40 and 59,621.60

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Solution

The fourth proportional to 90,822.80, 136,088.40 and 59,621.60 is: 89,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,822.80 : 136,088.40 = 59,621.60 : x
  2. Step 2: Convert to fraction form
    90,822.80/136,088.40 = 59,621.60/x
  3. Step 3: Cross multiply
    90,822.80x = 136,088.40 × 59,621.60
  4. Step 4: Simplify right side
    90,822.80x = 8,113,808,149.44
  5. Step 5: Solve for x
    x = 8,113,808,149.44/90,822.80
  6. Step 6: Final answer
    x = 89,336.69

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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.