Home / 77,012.30-106,276.10-45,175.08

Finding the Fourth Proportional to 77,012.30, 106,276.10 and 45,175.08

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Solution

The fourth proportional to 77,012.30, 106,276.10 and 45,175.08 is: 62,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,012.30 : 106,276.10 = 45,175.08 : x
  2. Step 2: Convert to fraction form
    77,012.30/106,276.10 = 45,175.08/x
  3. Step 3: Cross multiply
    77,012.30x = 106,276.10 × 45,175.08
  4. Step 4: Simplify right side
    77,012.30x = 4,801,031,319.59
  5. Step 5: Solve for x
    x = 4,801,031,319.59/77,012.30
  6. Step 6: Final answer
    x = 62,341.10

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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.