Home / 56,273.94-77,658.55-30,779.80

Finding the Fourth Proportional to 56,273.94, 77,658.55 and 30,779.80

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Solution

The fourth proportional to 56,273.94, 77,658.55 and 30,779.80 is: 42,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,273.94 : 77,658.55 = 30,779.80 : x
  2. Step 2: Convert to fraction form
    56,273.94/77,658.55 = 30,779.80/x
  3. Step 3: Cross multiply
    56,273.94x = 77,658.55 × 30,779.80
  4. Step 4: Simplify right side
    56,273.94x = 2,390,314,366.19
  5. Step 5: Solve for x
    x = 2,390,314,366.19/56,273.94
  6. Step 6: Final answer
    x = 42,476.40

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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.