Home / 91,312.32-126,010.74-51,026.12

Finding the Fourth Proportional to 91,312.32, 126,010.74 and 51,026.12

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Solution

The fourth proportional to 91,312.32, 126,010.74 and 51,026.12 is: 70,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,312.32 : 126,010.74 = 51,026.12 : x
  2. Step 2: Convert to fraction form
    91,312.32/126,010.74 = 51,026.12/x
  3. Step 3: Cross multiply
    91,312.32x = 126,010.74 × 51,026.12
  4. Step 4: Simplify right side
    91,312.32x = 6,429,839,140.53
  5. Step 5: Solve for x
    x = 6,429,839,140.53/91,312.32
  6. Step 6: Final answer
    x = 70,415.90

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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.