Home / 88,613.81-122,217.95-56,785.67

Finding the Fourth Proportional to 88,613.81, 122,217.95 and 56,785.67

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Solution

The fourth proportional to 88,613.81, 122,217.95 and 56,785.67 is: 78,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,613.81 : 122,217.95 = 56,785.67 : x
  2. Step 2: Convert to fraction form
    88,613.81/122,217.95 = 56,785.67/x
  3. Step 3: Cross multiply
    88,613.81x = 122,217.95 × 56,785.67
  4. Step 4: Simplify right side
    88,613.81x = 6,940,227,281.76
  5. Step 5: Solve for x
    x = 6,940,227,281.76/88,613.81
  6. Step 6: Final answer
    x = 78,319.93

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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.