Home / 42,134.95-58,169.58-28,725.91

Finding the Fourth Proportional to 42,134.95, 58,169.58 and 28,725.91

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Solution

The fourth proportional to 42,134.95, 58,169.58 and 28,725.91 is: 39,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,134.95 : 58,169.58 = 28,725.91 : x
  2. Step 2: Convert to fraction form
    42,134.95/58,169.58 = 28,725.91/x
  3. Step 3: Cross multiply
    42,134.95x = 58,169.58 × 28,725.91
  4. Step 4: Simplify right side
    42,134.95x = 1,670,974,119.82
  5. Step 5: Solve for x
    x = 1,670,974,119.82/42,134.95
  6. Step 6: Final answer
    x = 39,657.67

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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.