Home / 91,972.60-126,925.68-56,178.70

Finding the Fourth Proportional to 91,972.60, 126,925.68 and 56,178.70

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Solution

The fourth proportional to 91,972.60, 126,925.68 and 56,178.70 is: 77,528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,972.60 : 126,925.68 = 56,178.70 : x
  2. Step 2: Convert to fraction form
    91,972.60/126,925.68 = 56,178.70/x
  3. Step 3: Cross multiply
    91,972.60x = 126,925.68 × 56,178.70
  4. Step 4: Simplify right side
    91,972.60x = 7,130,519,592.37
  5. Step 5: Solve for x
    x = 7,130,519,592.37/91,972.60
  6. Step 6: Final answer
    x = 77,528.74

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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.