Home / 91,435.60-137,094.20-38,830.80

Finding the Fourth Proportional to 91,435.60, 137,094.20 and 38,830.80

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Solution

The fourth proportional to 91,435.60, 137,094.20 and 38,830.80 is: 58,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,435.60 : 137,094.20 = 38,830.80 : x
  2. Step 2: Convert to fraction form
    91,435.60/137,094.20 = 38,830.80/x
  3. Step 3: Cross multiply
    91,435.60x = 137,094.20 × 38,830.80
  4. Step 4: Simplify right side
    91,435.60x = 5,323,477,461.36
  5. Step 5: Solve for x
    x = 5,323,477,461.36/91,435.60
  6. Step 6: Final answer
    x = 58,221.06

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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.