Home / 85,445.86-128,194.76-60,534.10

Finding the Fourth Proportional to 85,445.86, 128,194.76 and 60,534.10

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Solution

The fourth proportional to 85,445.86, 128,194.76 and 60,534.10 is: 90,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,445.86 : 128,194.76 = 60,534.10 : x
  2. Step 2: Convert to fraction form
    85,445.86/128,194.76 = 60,534.10/x
  3. Step 3: Cross multiply
    85,445.86x = 128,194.76 × 60,534.10
  4. Step 4: Simplify right side
    85,445.86x = 7,760,154,421.32
  5. Step 5: Solve for x
    x = 7,760,154,421.32/85,445.86
  6. Step 6: Final answer
    x = 90,819.55

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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.