Home / 90,276.60-124,570.98-55,815.96

Finding the Fourth Proportional to 90,276.60, 124,570.98 and 55,815.96

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Solution

The fourth proportional to 90,276.60, 124,570.98 and 55,815.96 is: 77,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.60 : 124,570.98 = 55,815.96 : x
  2. Step 2: Convert to fraction form
    90,276.60/124,570.98 = 55,815.96/x
  3. Step 3: Cross multiply
    90,276.60x = 124,570.98 × 55,815.96
  4. Step 4: Simplify right side
    90,276.60x = 6,953,048,836.84
  5. Step 5: Solve for x
    x = 6,953,048,836.84/90,276.60
  6. Step 6: Final answer
    x = 77,019.39

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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.