Home / 45,830.70-68,746.05-40,290.30

Finding the Fourth Proportional to 45,830.70, 68,746.05 and 40,290.30

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Solution

The fourth proportional to 45,830.70, 68,746.05 and 40,290.30 is: 60,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,830.70 : 68,746.05 = 40,290.30 : x
  2. Step 2: Convert to fraction form
    45,830.70/68,746.05 = 40,290.30/x
  3. Step 3: Cross multiply
    45,830.70x = 68,746.05 × 40,290.30
  4. Step 4: Simplify right side
    45,830.70x = 2,769,798,978.32
  5. Step 5: Solve for x
    x = 2,769,798,978.32/45,830.70
  6. Step 6: Final answer
    x = 60,435.45

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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.