Home / 56,102.85-77,421.85-30,609.23

Finding the Fourth Proportional to 56,102.85, 77,421.85 and 30,609.23

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Solution

The fourth proportional to 56,102.85, 77,421.85 and 30,609.23 is: 42,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,102.85 : 77,421.85 = 30,609.23 : x
  2. Step 2: Convert to fraction form
    56,102.85/77,421.85 = 30,609.23/x
  3. Step 3: Cross multiply
    56,102.85x = 77,421.85 × 30,609.23
  4. Step 4: Simplify right side
    56,102.85x = 2,369,823,330.71
  5. Step 5: Solve for x
    x = 2,369,823,330.71/56,102.85
  6. Step 6: Final answer
    x = 42,240.69

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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.