Home / 51,478.01-71,036.36-28,813.19

Finding the Fourth Proportional to 51,478.01, 71,036.36 and 28,813.19

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Solution

The fourth proportional to 51,478.01, 71,036.36 and 28,813.19 is: 39,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.01 : 71,036.36 = 28,813.19 : x
  2. Step 2: Convert to fraction form
    51,478.01/71,036.36 = 28,813.19/x
  3. Step 3: Cross multiply
    51,478.01x = 71,036.36 × 28,813.19
  4. Step 4: Simplify right side
    51,478.01x = 2,046,783,638.34
  5. Step 5: Solve for x
    x = 2,046,783,638.34/51,478.01
  6. Step 6: Final answer
    x = 39,760.35

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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.