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Finding the Fourth Proportional to 58,289.60, 87,434.40 and 39,627.20

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Solution

The fourth proportional to 58,289.60, 87,434.40 and 39,627.20 is: 59,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,289.60 : 87,434.40 = 39,627.20 : x
  2. Step 2: Convert to fraction form
    58,289.60/87,434.40 = 39,627.20/x
  3. Step 3: Cross multiply
    58,289.60x = 87,434.40 × 39,627.20
  4. Step 4: Simplify right side
    58,289.60x = 3,464,780,455.68
  5. Step 5: Solve for x
    x = 3,464,780,455.68/58,289.60
  6. Step 6: Final answer
    x = 59,440.80

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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.