Home / 70,946.69-97,904.90-39,115.64

Finding the Fourth Proportional to 70,946.69, 97,904.90 and 39,115.64

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Solution

The fourth proportional to 70,946.69, 97,904.90 and 39,115.64 is: 53,978.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,946.69 : 97,904.90 = 39,115.64 : x
  2. Step 2: Convert to fraction form
    70,946.69/97,904.90 = 39,115.64/x
  3. Step 3: Cross multiply
    70,946.69x = 97,904.90 × 39,115.64
  4. Step 4: Simplify right side
    70,946.69x = 3,829,613,165.19
  5. Step 5: Solve for x
    x = 3,829,613,165.19/70,946.69
  6. Step 6: Final answer
    x = 53,978.75

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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.