Home / 77,130.55-115,710.29-35,013.57

Finding the Fourth Proportional to 77,130.55, 115,710.29 and 35,013.57

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Solution

The fourth proportional to 77,130.55, 115,710.29 and 35,013.57 is: 52,526.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,130.55 : 115,710.29 = 35,013.57 : x
  2. Step 2: Convert to fraction form
    77,130.55/115,710.29 = 35,013.57/x
  3. Step 3: Cross multiply
    77,130.55x = 115,710.29 × 35,013.57
  4. Step 4: Simplify right side
    77,130.55x = 4,051,430,728.78
  5. Step 5: Solve for x
    x = 4,051,430,728.78/77,130.55
  6. Step 6: Final answer
    x = 52,526.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.