Home / 70,447.36-97,220.37-42,147.58

Finding the Fourth Proportional to 70,447.36, 97,220.37 and 42,147.58

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Solution

The fourth proportional to 70,447.36, 97,220.37 and 42,147.58 is: 58,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,447.36 : 97,220.37 = 42,147.58 : x
  2. Step 2: Convert to fraction form
    70,447.36/97,220.37 = 42,147.58/x
  3. Step 3: Cross multiply
    70,447.36x = 97,220.37 × 42,147.58
  4. Step 4: Simplify right side
    70,447.36x = 4,097,603,322.20
  5. Step 5: Solve for x
    x = 4,097,603,322.20/70,447.36
  6. Step 6: Final answer
    x = 58,165.46

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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.