Home / 55,191.26-76,018.85-42,420.01

Finding the Fourth Proportional to 55,191.26, 76,018.85 and 42,420.01

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Solution

The fourth proportional to 55,191.26, 76,018.85 and 42,420.01 is: 58,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,191.26 : 76,018.85 = 42,420.01 : x
  2. Step 2: Convert to fraction form
    55,191.26/76,018.85 = 42,420.01/x
  3. Step 3: Cross multiply
    55,191.26x = 76,018.85 × 42,420.01
  4. Step 4: Simplify right side
    55,191.26x = 3,224,720,729.07
  5. Step 5: Solve for x
    x = 3,224,720,729.07/55,191.26
  6. Step 6: Final answer
    x = 58,428.11

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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.