Home / 66,886.20-92,332.68-42,718.86

Finding the Fourth Proportional to 66,886.20, 92,332.68 and 42,718.86

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Solution

The fourth proportional to 66,886.20, 92,332.68 and 42,718.86 is: 58,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,886.20 : 92,332.68 = 42,718.86 : x
  2. Step 2: Convert to fraction form
    66,886.20/92,332.68 = 42,718.86/x
  3. Step 3: Cross multiply
    66,886.20x = 92,332.68 × 42,718.86
  4. Step 4: Simplify right side
    66,886.20x = 3,944,346,830.34
  5. Step 5: Solve for x
    x = 3,944,346,830.34/66,886.20
  6. Step 6: Final answer
    x = 58,971.01

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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.