Home / 56,980.20-78,587.84-53,160.50

Finding the Fourth Proportional to 56,980.20, 78,587.84 and 53,160.50

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Solution

The fourth proportional to 56,980.20, 78,587.84 and 53,160.50 is: 73,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,980.20 : 78,587.84 = 53,160.50 : x
  2. Step 2: Convert to fraction form
    56,980.20/78,587.84 = 53,160.50/x
  3. Step 3: Cross multiply
    56,980.20x = 78,587.84 × 53,160.50
  4. Step 4: Simplify right side
    56,980.20x = 4,177,768,868.32
  5. Step 5: Solve for x
    x = 4,177,768,868.32/56,980.20
  6. Step 6: Final answer
    x = 73,319.66

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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.