Home / 74,430.06-102,714.65-40,439.22

Finding the Fourth Proportional to 74,430.06, 102,714.65 and 40,439.22

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Solution

The fourth proportional to 74,430.06, 102,714.65 and 40,439.22 is: 55,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.06 : 102,714.65 = 40,439.22 : x
  2. Step 2: Convert to fraction form
    74,430.06/102,714.65 = 40,439.22/x
  3. Step 3: Cross multiply
    74,430.06x = 102,714.65 × 40,439.22
  4. Step 4: Simplify right side
    74,430.06x = 4,153,700,328.57
  5. Step 5: Solve for x
    x = 4,153,700,328.57/74,430.06
  6. Step 6: Final answer
    x = 55,806.76

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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.