Home / 70,386.20-97,133.30-38,555

Finding the Fourth Proportional to 70,386.20, 97,133.30 and 38,555

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Solution

The fourth proportional to 70,386.20, 97,133.30 and 38,555 is: 53,206.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,386.20 : 97,133.30 = 38,555 : x
  2. Step 2: Convert to fraction form
    70,386.20/97,133.30 = 38,555/x
  3. Step 3: Cross multiply
    70,386.20x = 97,133.30 × 38,555
  4. Step 4: Simplify right side
    70,386.20x = 3,744,974,381.50
  5. Step 5: Solve for x
    x = 3,744,974,381.50/70,386.20
  6. Step 6: Final answer
    x = 53,206.09

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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.