Home / 89,430.17-123,407.83-51,190.02

Finding the Fourth Proportional to 89,430.17, 123,407.83 and 51,190.02

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Solution

The fourth proportional to 89,430.17, 123,407.83 and 51,190.02 is: 70,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,430.17 : 123,407.83 = 51,190.02 : x
  2. Step 2: Convert to fraction form
    89,430.17/123,407.83 = 51,190.02/x
  3. Step 3: Cross multiply
    89,430.17x = 123,407.83 × 51,190.02
  4. Step 4: Simplify right side
    89,430.17x = 6,317,248,412.87
  5. Step 5: Solve for x
    x = 6,317,248,412.87/89,430.17
  6. Step 6: Final answer
    x = 70,638.90

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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.