Home / 56,421.24-77,860.86-30,927.70

Finding the Fourth Proportional to 56,421.24, 77,860.86 and 30,927.70

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Solution

The fourth proportional to 56,421.24, 77,860.86 and 30,927.70 is: 42,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.24 : 77,860.86 = 30,927.70 : x
  2. Step 2: Convert to fraction form
    56,421.24/77,860.86 = 30,927.70/x
  3. Step 3: Cross multiply
    56,421.24x = 77,860.86 × 30,927.70
  4. Step 4: Simplify right side
    56,421.24x = 2,408,057,319.82
  5. Step 5: Solve for x
    x = 2,408,057,319.82/56,421.24
  6. Step 6: Final answer
    x = 42,679.98

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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.