Home / 70,962.24-97,920.72-39,130.32

Finding the Fourth Proportional to 70,962.24, 97,920.72 and 39,130.32

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Solution

The fourth proportional to 70,962.24, 97,920.72 and 39,130.32 is: 53,995.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,962.24 : 97,920.72 = 39,130.32 : x
  2. Step 2: Convert to fraction form
    70,962.24/97,920.72 = 39,130.32/x
  3. Step 3: Cross multiply
    70,962.24x = 97,920.72 × 39,130.32
  4. Step 4: Simplify right side
    70,962.24x = 3,831,669,108.23
  5. Step 5: Solve for x
    x = 3,831,669,108.23/70,962.24
  6. Step 6: Final answer
    x = 53,995.89

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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.