Home / 70,345.89-97,073.50-38,508.64

Finding the Fourth Proportional to 70,345.89, 97,073.50 and 38,508.64

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Solution

The fourth proportional to 70,345.89, 97,073.50 and 38,508.64 is: 53,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,345.89 : 97,073.50 = 38,508.64 : x
  2. Step 2: Convert to fraction form
    70,345.89/97,073.50 = 38,508.64/x
  3. Step 3: Cross multiply
    70,345.89x = 97,073.50 × 38,508.64
  4. Step 4: Simplify right side
    70,345.89x = 3,738,168,465.04
  5. Step 5: Solve for x
    x = 3,738,168,465.04/70,345.89
  6. Step 6: Final answer
    x = 53,139.83

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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.