Home / 97,678.86-134,823.40-57,405.60

Finding the Fourth Proportional to 97,678.86, 134,823.40 and 57,405.60

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Solution

The fourth proportional to 97,678.86, 134,823.40 and 57,405.60 is: 79,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,678.86 : 134,823.40 = 57,405.60 : x
  2. Step 2: Convert to fraction form
    97,678.86/134,823.40 = 57,405.60/x
  3. Step 3: Cross multiply
    97,678.86x = 134,823.40 × 57,405.60
  4. Step 4: Simplify right side
    97,678.86x = 7,739,618,171.04
  5. Step 5: Solve for x
    x = 7,739,618,171.04/97,678.86
  6. Step 6: Final answer
    x = 79,235.34

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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.