Home / 74,158.51-102,338.50-40,166.91

Finding the Fourth Proportional to 74,158.51, 102,338.50 and 40,166.91

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Solution

The fourth proportional to 74,158.51, 102,338.50 and 40,166.91 is: 55,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,158.51 : 102,338.50 = 40,166.91 : x
  2. Step 2: Convert to fraction form
    74,158.51/102,338.50 = 40,166.91/x
  3. Step 3: Cross multiply
    74,158.51x = 102,338.50 × 40,166.91
  4. Step 4: Simplify right side
    74,158.51x = 4,110,621,638.24
  5. Step 5: Solve for x
    x = 4,110,621,638.24/74,158.51
  6. Step 6: Final answer
    x = 55,430.21

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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.