Home / 56,172.46-77,386.13-39,145.75

Finding the Fourth Proportional to 56,172.46, 77,386.13 and 39,145.75

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Solution

The fourth proportional to 56,172.46, 77,386.13 and 39,145.75 is: 53,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,172.46 : 77,386.13 = 39,145.75 : x
  2. Step 2: Convert to fraction form
    56,172.46/77,386.13 = 39,145.75/x
  3. Step 3: Cross multiply
    56,172.46x = 77,386.13 × 39,145.75
  4. Step 4: Simplify right side
    56,172.46x = 3,029,337,711.52
  5. Step 5: Solve for x
    x = 3,029,337,711.52/56,172.46
  6. Step 6: Final answer
    x = 53,929.24

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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.