Home / 72,011.76-99,360.36-41,779.60

Finding the Fourth Proportional to 72,011.76, 99,360.36 and 41,779.60

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Solution

The fourth proportional to 72,011.76, 99,360.36 and 41,779.60 is: 57,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,011.76 : 99,360.36 = 41,779.60 : x
  2. Step 2: Convert to fraction form
    72,011.76/99,360.36 = 41,779.60/x
  3. Step 3: Cross multiply
    72,011.76x = 99,360.36 × 41,779.60
  4. Step 4: Simplify right side
    72,011.76x = 4,151,236,096.66
  5. Step 5: Solve for x
    x = 4,151,236,096.66/72,011.76
  6. Step 6: Final answer
    x = 57,646.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.