Home / 70,498.18-97,289.40-40,288.42

Finding the Fourth Proportional to 70,498.18, 97,289.40 and 40,288.42

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Solution

The fourth proportional to 70,498.18, 97,289.40 and 40,288.42 is: 55,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,498.18 : 97,289.40 = 40,288.42 : x
  2. Step 2: Convert to fraction form
    70,498.18/97,289.40 = 40,288.42/x
  3. Step 3: Cross multiply
    70,498.18x = 97,289.40 × 40,288.42
  4. Step 4: Simplify right side
    70,498.18x = 3,919,636,208.75
  5. Step 5: Solve for x
    x = 3,919,636,208.75/70,498.18
  6. Step 6: Final answer
    x = 55,599.11

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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.