Home / 75,046.90-103,554.57-42,785.68

Finding the Fourth Proportional to 75,046.90, 103,554.57 and 42,785.68

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Solution

The fourth proportional to 75,046.90, 103,554.57 and 42,785.68 is: 59,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,046.90 : 103,554.57 = 42,785.68 : x
  2. Step 2: Convert to fraction form
    75,046.90/103,554.57 = 42,785.68/x
  3. Step 3: Cross multiply
    75,046.90x = 103,554.57 × 42,785.68
  4. Step 4: Simplify right side
    75,046.90x = 4,430,652,435.67
  5. Step 5: Solve for x
    x = 4,430,652,435.67/75,046.90
  6. Step 6: Final answer
    x = 59,038.45

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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.