Home / 58,330.08-87,485.40-18,915.48

Finding the Fourth Proportional to 58,330.08, 87,485.40 and 18,915.48

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Solution

The fourth proportional to 58,330.08, 87,485.40 and 18,915.48 is: 28,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,330.08 : 87,485.40 = 18,915.48 : x
  2. Step 2: Convert to fraction form
    58,330.08/87,485.40 = 18,915.48/x
  3. Step 3: Cross multiply
    58,330.08x = 87,485.40 × 18,915.48
  4. Step 4: Simplify right side
    58,330.08x = 1,654,828,333.99
  5. Step 5: Solve for x
    x = 1,654,828,333.99/58,330.08
  6. Step 6: Final answer
    x = 28,370.07

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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.