Home / 45,430.10-62,719.62-30,372.60

Finding the Fourth Proportional to 45,430.10, 62,719.62 and 30,372.60

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Solution

The fourth proportional to 45,430.10, 62,719.62 and 30,372.60 is: 41,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,430.10 : 62,719.62 = 30,372.60 : x
  2. Step 2: Convert to fraction form
    45,430.10/62,719.62 = 30,372.60/x
  3. Step 3: Cross multiply
    45,430.10x = 62,719.62 × 30,372.60
  4. Step 4: Simplify right side
    45,430.10x = 1,904,958,051.71
  5. Step 5: Solve for x
    x = 1,904,958,051.71/45,430.10
  6. Step 6: Final answer
    x = 41,931.63

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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.