Home / 39,128.80-58,693.20-37,746.40

Finding the Fourth Proportional to 39,128.80, 58,693.20 and 37,746.40

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Solution

The fourth proportional to 39,128.80, 58,693.20 and 37,746.40 is: 56,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.80 : 58,693.20 = 37,746.40 : x
  2. Step 2: Convert to fraction form
    39,128.80/58,693.20 = 37,746.40/x
  3. Step 3: Cross multiply
    39,128.80x = 58,693.20 × 37,746.40
  4. Step 4: Simplify right side
    39,128.80x = 2,215,457,004.48
  5. Step 5: Solve for x
    x = 2,215,457,004.48/39,128.80
  6. Step 6: Final answer
    x = 56,619.60

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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.