Home / 90,389.67-124,740.96-54,572.70

Finding the Fourth Proportional to 90,389.67, 124,740.96 and 54,572.70

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Solution

The fourth proportional to 90,389.67, 124,740.96 and 54,572.70 is: 75,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,389.67 : 124,740.96 = 54,572.70 : x
  2. Step 2: Convert to fraction form
    90,389.67/124,740.96 = 54,572.70/x
  3. Step 3: Cross multiply
    90,389.67x = 124,740.96 × 54,572.70
  4. Step 4: Simplify right side
    90,389.67x = 6,807,450,987.79
  5. Step 5: Solve for x
    x = 6,807,450,987.79/90,389.67
  6. Step 6: Final answer
    x = 75,312.27

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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.