Home / 45,213.12-62,386.51-30,128.31

Finding the Fourth Proportional to 45,213.12, 62,386.51 and 30,128.31

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Solution

The fourth proportional to 45,213.12, 62,386.51 and 30,128.31 is: 41,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,213.12 : 62,386.51 = 30,128.31 : x
  2. Step 2: Convert to fraction form
    45,213.12/62,386.51 = 30,128.31/x
  3. Step 3: Cross multiply
    45,213.12x = 62,386.51 × 30,128.31
  4. Step 4: Simplify right side
    45,213.12x = 1,879,600,113.10
  5. Step 5: Solve for x
    x = 1,879,600,113.10/45,213.12
  6. Step 6: Final answer
    x = 41,572.01

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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.