Home / 75,416.63-113,172.59-42,158.51

Finding the Fourth Proportional to 75,416.63, 113,172.59 and 42,158.51

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Solution

The fourth proportional to 75,416.63, 113,172.59 and 42,158.51 is: 63,264.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,416.63 : 113,172.59 = 42,158.51 : x
  2. Step 2: Convert to fraction form
    75,416.63/113,172.59 = 42,158.51/x
  3. Step 3: Cross multiply
    75,416.63x = 113,172.59 × 42,158.51
  4. Step 4: Simplify right side
    75,416.63x = 4,771,186,990.59
  5. Step 5: Solve for x
    x = 4,771,186,990.59/75,416.63
  6. Step 6: Final answer
    x = 63,264.39

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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.