Home / 89,503.34-123,533.48-56,776.64

Finding the Fourth Proportional to 89,503.34, 123,533.48 and 56,776.64

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Solution

The fourth proportional to 89,503.34, 123,533.48 and 56,776.64 is: 78,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,503.34 : 123,533.48 = 56,776.64 : x
  2. Step 2: Convert to fraction form
    89,503.34/123,533.48 = 56,776.64/x
  3. Step 3: Cross multiply
    89,503.34x = 123,533.48 × 56,776.64
  4. Step 4: Simplify right side
    89,503.34x = 7,013,815,638.02
  5. Step 5: Solve for x
    x = 7,013,815,638.02/89,503.34
  6. Step 6: Final answer
    x = 78,363.73

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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.