Home / 84,544.16-126,830.81-28,389.67

Finding the Fourth Proportional to 84,544.16, 126,830.81 and 28,389.67

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Solution

The fourth proportional to 84,544.16, 126,830.81 and 28,389.67 is: 42,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,544.16 : 126,830.81 = 28,389.67 : x
  2. Step 2: Convert to fraction form
    84,544.16/126,830.81 = 28,389.67/x
  3. Step 3: Cross multiply
    84,544.16x = 126,830.81 × 28,389.67
  4. Step 4: Simplify right side
    84,544.16x = 3,600,684,595.63
  5. Step 5: Solve for x
    x = 3,600,684,595.63/84,544.16
  6. Step 6: Final answer
    x = 42,589.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.