Home / 30,078.02-45,110.43-10,090.31

Finding the Fourth Proportional to 30,078.02, 45,110.43 and 10,090.31

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Solution

The fourth proportional to 30,078.02, 45,110.43 and 10,090.31 is: 15,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.02 : 45,110.43 = 10,090.31 : x
  2. Step 2: Convert to fraction form
    30,078.02/45,110.43 = 10,090.31/x
  3. Step 3: Cross multiply
    30,078.02x = 45,110.43 × 10,090.31
  4. Step 4: Simplify right side
    30,078.02x = 455,178,222.93
  5. Step 5: Solve for x
    x = 455,178,222.93/30,078.02
  6. Step 6: Final answer
    x = 15,133.25

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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.