Home / 74,130.23-102,307.05-42,303.91

Finding the Fourth Proportional to 74,130.23, 102,307.05 and 42,303.91

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Solution

The fourth proportional to 74,130.23, 102,307.05 and 42,303.91 is: 58,383.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,130.23 : 102,307.05 = 42,303.91 : x
  2. Step 2: Convert to fraction form
    74,130.23/102,307.05 = 42,303.91/x
  3. Step 3: Cross multiply
    74,130.23x = 102,307.05 × 42,303.91
  4. Step 4: Simplify right side
    74,130.23x = 4,327,988,024.05
  5. Step 5: Solve for x
    x = 4,327,988,024.05/74,130.23
  6. Step 6: Final answer
    x = 58,383.58

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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.