Home / 70,904.63-97,845.23-38,639.36

Finding the Fourth Proportional to 70,904.63, 97,845.23 and 38,639.36

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Solution

The fourth proportional to 70,904.63, 97,845.23 and 38,639.36 is: 53,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,904.63 : 97,845.23 = 38,639.36 : x
  2. Step 2: Convert to fraction form
    70,904.63/97,845.23 = 38,639.36/x
  3. Step 3: Cross multiply
    70,904.63x = 97,845.23 × 38,639.36
  4. Step 4: Simplify right side
    70,904.63x = 3,780,676,383.83
  5. Step 5: Solve for x
    x = 3,780,676,383.83/70,904.63
  6. Step 6: Final answer
    x = 53,320.59

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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.