Home / 70,730.52-97,610.04-38,900.28

Finding the Fourth Proportional to 70,730.52, 97,610.04 and 38,900.28

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Solution

The fourth proportional to 70,730.52, 97,610.04 and 38,900.28 is: 53,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,730.52 : 97,610.04 = 38,900.28 : x
  2. Step 2: Convert to fraction form
    70,730.52/97,610.04 = 38,900.28/x
  3. Step 3: Cross multiply
    70,730.52x = 97,610.04 × 38,900.28
  4. Step 4: Simplify right side
    70,730.52x = 3,797,057,886.81
  5. Step 5: Solve for x
    x = 3,797,057,886.81/70,730.52
  6. Step 6: Final answer
    x = 53,683.44

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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.