Home / 56,581.08-78,085.32-31,430.52

Finding the Fourth Proportional to 56,581.08, 78,085.32 and 31,430.52

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Solution

The fourth proportional to 56,581.08, 78,085.32 and 31,430.52 is: 43,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,581.08 : 78,085.32 = 31,430.52 : x
  2. Step 2: Convert to fraction form
    56,581.08/78,085.32 = 31,430.52/x
  3. Step 3: Cross multiply
    56,581.08x = 78,085.32 × 31,430.52
  4. Step 4: Simplify right side
    56,581.08x = 2,454,262,211.97
  5. Step 5: Solve for x
    x = 2,454,262,211.97/56,581.08
  6. Step 6: Final answer
    x = 43,376.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.