Home / 74,868.72-103,319.03-40,877.51

Finding the Fourth Proportional to 74,868.72, 103,319.03 and 40,877.51

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Solution

The fourth proportional to 74,868.72, 103,319.03 and 40,877.51 is: 56,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,868.72 : 103,319.03 = 40,877.51 : x
  2. Step 2: Convert to fraction form
    74,868.72/103,319.03 = 40,877.51/x
  3. Step 3: Cross multiply
    74,868.72x = 103,319.03 × 40,877.51
  4. Step 4: Simplify right side
    74,868.72x = 4,223,423,961.03
  5. Step 5: Solve for x
    x = 4,223,423,961.03/74,868.72
  6. Step 6: Final answer
    x = 56,411.06

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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.