Home / 77,924.60-116,886.90-64,786.40

Finding the Fourth Proportional to 77,924.60, 116,886.90 and 64,786.40

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Solution

The fourth proportional to 77,924.60, 116,886.90 and 64,786.40 is: 97,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,924.60 : 116,886.90 = 64,786.40 : x
  2. Step 2: Convert to fraction form
    77,924.60/116,886.90 = 64,786.40/x
  3. Step 3: Cross multiply
    77,924.60x = 116,886.90 × 64,786.40
  4. Step 4: Simplify right side
    77,924.60x = 7,572,681,458.16
  5. Step 5: Solve for x
    x = 7,572,681,458.16/77,924.60
  6. Step 6: Final answer
    x = 97,179.60

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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.