Home / 70,945.96-97,877.88-40,720.36

Finding the Fourth Proportional to 70,945.96, 97,877.88 and 40,720.36

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Solution

The fourth proportional to 70,945.96, 97,877.88 and 40,720.36 is: 56,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,945.96 : 97,877.88 = 40,720.36 : x
  2. Step 2: Convert to fraction form
    70,945.96/97,877.88 = 40,720.36/x
  3. Step 3: Cross multiply
    70,945.96x = 97,877.88 × 40,720.36
  4. Step 4: Simplify right side
    70,945.96x = 3,985,622,509.64
  5. Step 5: Solve for x
    x = 3,985,622,509.64/70,945.96
  6. Step 6: Final answer
    x = 56,178.29

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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.