Home / 96,905.40-145,271.70-57,420.60

Finding the Fourth Proportional to 96,905.40, 145,271.70 and 57,420.60

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Solution

The fourth proportional to 96,905.40, 145,271.70 and 57,420.60 is: 86,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,905.40 : 145,271.70 = 57,420.60 : x
  2. Step 2: Convert to fraction form
    96,905.40/145,271.70 = 57,420.60/x
  3. Step 3: Cross multiply
    96,905.40x = 145,271.70 × 57,420.60
  4. Step 4: Simplify right side
    96,905.40x = 8,341,588,177.02
  5. Step 5: Solve for x
    x = 8,341,588,177.02/96,905.40
  6. Step 6: Final answer
    x = 86,079.70

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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.