Home / 51,417.95-70,956.27-28,756.67

Finding the Fourth Proportional to 51,417.95, 70,956.27 and 28,756.67

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Solution

The fourth proportional to 51,417.95, 70,956.27 and 28,756.67 is: 39,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,417.95 : 70,956.27 = 28,756.67 : x
  2. Step 2: Convert to fraction form
    51,417.95/70,956.27 = 28,756.67/x
  3. Step 3: Cross multiply
    51,417.95x = 70,956.27 × 28,756.67
  4. Step 4: Simplify right side
    51,417.95x = 2,040,465,686.04
  5. Step 5: Solve for x
    x = 2,040,465,686.04/51,417.95
  6. Step 6: Final answer
    x = 39,683.92

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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.