Home / 89,483.40-123,485.45-49,196.70

Finding the Fourth Proportional to 89,483.40, 123,485.45 and 49,196.70

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Solution

The fourth proportional to 89,483.40, 123,485.45 and 49,196.70 is: 67,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,483.40 : 123,485.45 = 49,196.70 : x
  2. Step 2: Convert to fraction form
    89,483.40/123,485.45 = 49,196.70/x
  3. Step 3: Cross multiply
    89,483.40x = 123,485.45 × 49,196.70
  4. Step 4: Simplify right side
    89,483.40x = 6,075,076,392.03
  5. Step 5: Solve for x
    x = 6,075,076,392.03/89,483.40
  6. Step 6: Final answer
    x = 67,890.54

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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.