Home / 77,178.24-106,461.36-45,340.56

Finding the Fourth Proportional to 77,178.24, 106,461.36 and 45,340.56

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Solution

The fourth proportional to 77,178.24, 106,461.36 and 45,340.56 is: 62,543.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,178.24 : 106,461.36 = 45,340.56 : x
  2. Step 2: Convert to fraction form
    77,178.24/106,461.36 = 45,340.56/x
  3. Step 3: Cross multiply
    77,178.24x = 106,461.36 × 45,340.56
  4. Step 4: Simplify right side
    77,178.24x = 4,827,017,680.76
  5. Step 5: Solve for x
    x = 4,827,017,680.76/77,178.24
  6. Step 6: Final answer
    x = 62,543.76

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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.