Home / 56,538.14-78,032.70-42,269.58

Finding the Fourth Proportional to 56,538.14, 78,032.70 and 42,269.58

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Solution

The fourth proportional to 56,538.14, 78,032.70 and 42,269.58 is: 58,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,538.14 : 78,032.70 = 42,269.58 : x
  2. Step 2: Convert to fraction form
    56,538.14/78,032.70 = 42,269.58/x
  3. Step 3: Cross multiply
    56,538.14x = 78,032.70 × 42,269.58
  4. Step 4: Simplify right side
    56,538.14x = 3,298,409,455.27
  5. Step 5: Solve for x
    x = 3,298,409,455.27/56,538.14
  6. Step 6: Final answer
    x = 58,339.55

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1.5x scale

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.