Home / 56,488.28-84,746.55-39,880.75

Finding the Fourth Proportional to 56,488.28, 84,746.55 and 39,880.75

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Solution

The fourth proportional to 56,488.28, 84,746.55 and 39,880.75 is: 59,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,488.28 : 84,746.55 = 39,880.75 : x
  2. Step 2: Convert to fraction form
    56,488.28/84,746.55 = 39,880.75/x
  3. Step 3: Cross multiply
    56,488.28x = 84,746.55 × 39,880.75
  4. Step 4: Simplify right side
    56,488.28x = 3,379,755,774.51
  5. Step 5: Solve for x
    x = 3,379,755,774.51/56,488.28
  6. Step 6: Final answer
    x = 59,831.10

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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.