Home / 70,779.09-97,673.34-38,512.34

Finding the Fourth Proportional to 70,779.09, 97,673.34 and 38,512.34

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Solution

The fourth proportional to 70,779.09, 97,673.34 and 38,512.34 is: 53,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,779.09 : 97,673.34 = 38,512.34 : x
  2. Step 2: Convert to fraction form
    70,779.09/97,673.34 = 38,512.34/x
  3. Step 3: Cross multiply
    70,779.09x = 97,673.34 × 38,512.34
  4. Step 4: Simplify right side
    70,779.09x = 3,761,628,879.02
  5. Step 5: Solve for x
    x = 3,761,628,879.02/70,779.09
  6. Step 6: Final answer
    x = 53,146.05

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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.