Home / 54,300.55-81,461.69-18,763.16

Finding the Fourth Proportional to 54,300.55, 81,461.69 and 18,763.16

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Solution

The fourth proportional to 54,300.55, 81,461.69 and 18,763.16 is: 28,148.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,300.55 : 81,461.69 = 18,763.16 : x
  2. Step 2: Convert to fraction form
    54,300.55/81,461.69 = 18,763.16/x
  3. Step 3: Cross multiply
    54,300.55x = 81,461.69 × 18,763.16
  4. Step 4: Simplify right side
    54,300.55x = 1,528,478,833.18
  5. Step 5: Solve for x
    x = 1,528,478,833.18/54,300.55
  6. Step 6: Final answer
    x = 28,148.50

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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.