Home / 55,130.02-76,077.12-31,256.18

Finding the Fourth Proportional to 55,130.02, 76,077.12 and 31,256.18

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Solution

The fourth proportional to 55,130.02, 76,077.12 and 31,256.18 is: 43,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.02 : 76,077.12 = 31,256.18 : x
  2. Step 2: Convert to fraction form
    55,130.02/76,077.12 = 31,256.18/x
  3. Step 3: Cross multiply
    55,130.02x = 76,077.12 × 31,256.18
  4. Step 4: Simplify right side
    55,130.02x = 2,377,880,178.72
  5. Step 5: Solve for x
    x = 2,377,880,178.72/55,130.02
  6. Step 6: Final answer
    x = 43,132.22

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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.