Home / 91,317.04-126,015.08-51,031.11

Finding the Fourth Proportional to 91,317.04, 126,015.08 and 51,031.11

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Solution

The fourth proportional to 91,317.04, 126,015.08 and 51,031.11 is: 70,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,317.04 : 126,015.08 = 51,031.11 : x
  2. Step 2: Convert to fraction form
    91,317.04/126,015.08 = 51,031.11/x
  3. Step 3: Cross multiply
    91,317.04x = 126,015.08 × 51,031.11
  4. Step 4: Simplify right side
    91,317.04x = 6,430,689,626.54
  5. Step 5: Solve for x
    x = 6,430,689,626.54/91,317.04
  6. Step 6: Final answer
    x = 70,421.58

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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.