Home / 58,579.11-87,915.15-30,507.12

Finding the Fourth Proportional to 58,579.11, 87,915.15 and 30,507.12

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Solution

The fourth proportional to 58,579.11, 87,915.15 and 30,507.12 is: 45,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,579.11 : 87,915.15 = 30,507.12 : x
  2. Step 2: Convert to fraction form
    58,579.11/87,915.15 = 30,507.12/x
  3. Step 3: Cross multiply
    58,579.11x = 87,915.15 × 30,507.12
  4. Step 4: Simplify right side
    58,579.11x = 2,682,038,030.87
  5. Step 5: Solve for x
    x = 2,682,038,030.87/58,579.11
  6. Step 6: Final answer
    x = 45,784.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.