Home / 75,240.93-103,841.12-42,980.63

Finding the Fourth Proportional to 75,240.93, 103,841.12 and 42,980.63

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Solution

The fourth proportional to 75,240.93, 103,841.12 and 42,980.63 is: 59,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,240.93 : 103,841.12 = 42,980.63 : x
  2. Step 2: Convert to fraction form
    75,240.93/103,841.12 = 42,980.63/x
  3. Step 3: Cross multiply
    75,240.93x = 103,841.12 × 42,980.63
  4. Step 4: Simplify right side
    75,240.93x = 4,463,156,023.40
  5. Step 5: Solve for x
    x = 4,463,156,023.40/75,240.93
  6. Step 6: Final answer
    x = 59,318.19

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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.