Home / 55,710.18-76,875.48-30,559.68

Finding the Fourth Proportional to 55,710.18, 76,875.48 and 30,559.68

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Solution

The fourth proportional to 55,710.18, 76,875.48 and 30,559.68 is: 42,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,710.18 : 76,875.48 = 30,559.68 : x
  2. Step 2: Convert to fraction form
    55,710.18/76,875.48 = 30,559.68/x
  3. Step 3: Cross multiply
    55,710.18x = 76,875.48 × 30,559.68
  4. Step 4: Simplify right side
    55,710.18x = 2,349,290,068.65
  5. Step 5: Solve for x
    x = 2,349,290,068.65/55,710.18
  6. Step 6: Final answer
    x = 42,169.85

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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.