Home / 77,032.40-115,548.60-53,412.80

Finding the Fourth Proportional to 77,032.40, 115,548.60 and 53,412.80

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Solution

The fourth proportional to 77,032.40, 115,548.60 and 53,412.80 is: 80,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,032.40 : 115,548.60 = 53,412.80 : x
  2. Step 2: Convert to fraction form
    77,032.40/115,548.60 = 53,412.80/x
  3. Step 3: Cross multiply
    77,032.40x = 115,548.60 × 53,412.80
  4. Step 4: Simplify right side
    77,032.40x = 6,171,774,262.08
  5. Step 5: Solve for x
    x = 6,171,774,262.08/77,032.40
  6. Step 6: Final answer
    x = 80,119.20

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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.