Home / 51,315.16-70,796.20-30,090.32

Finding the Fourth Proportional to 51,315.16, 70,796.20 and 30,090.32

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Solution

The fourth proportional to 51,315.16, 70,796.20 and 30,090.32 is: 41,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.16 : 70,796.20 = 30,090.32 : x
  2. Step 2: Convert to fraction form
    51,315.16/70,796.20 = 30,090.32/x
  3. Step 3: Cross multiply
    51,315.16x = 70,796.20 × 30,090.32
  4. Step 4: Simplify right side
    51,315.16x = 2,130,280,312.78
  5. Step 5: Solve for x
    x = 2,130,280,312.78/51,315.16
  6. Step 6: Final answer
    x = 41,513.66

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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.