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Finding the Fourth Proportional to 89,509.07, 123,514.07 and 53,207.60

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Solution

The fourth proportional to 89,509.07, 123,514.07 and 53,207.60 is: 73,421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,509.07 : 123,514.07 = 53,207.60 : x
  2. Step 2: Convert to fraction form
    89,509.07/123,514.07 = 53,207.60/x
  3. Step 3: Cross multiply
    89,509.07x = 123,514.07 × 53,207.60
  4. Step 4: Simplify right side
    89,509.07x = 6,571,886,347.32
  5. Step 5: Solve for x
    x = 6,571,886,347.32/89,509.07
  6. Step 6: Final answer
    x = 73,421.46

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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.