Home / 70,389.34-97,137.20-38,123.94

Finding the Fourth Proportional to 70,389.34, 97,137.20 and 38,123.94

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Solution

The fourth proportional to 70,389.34, 97,137.20 and 38,123.94 is: 52,610.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,389.34 : 97,137.20 = 38,123.94 : x
  2. Step 2: Convert to fraction form
    70,389.34/97,137.20 = 38,123.94/x
  3. Step 3: Cross multiply
    70,389.34x = 97,137.20 × 38,123.94
  4. Step 4: Simplify right side
    70,389.34x = 3,703,252,784.57
  5. Step 5: Solve for x
    x = 3,703,252,784.57/70,389.34
  6. Step 6: Final answer
    x = 52,610.99

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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.