Home / 76,335.83-105,345.14-42,343.21

Finding the Fourth Proportional to 76,335.83, 105,345.14 and 42,343.21

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Solution

The fourth proportional to 76,335.83, 105,345.14 and 42,343.21 is: 58,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,335.83 : 105,345.14 = 42,343.21 : x
  2. Step 2: Convert to fraction form
    76,335.83/105,345.14 = 42,343.21/x
  3. Step 3: Cross multiply
    76,335.83x = 105,345.14 × 42,343.21
  4. Step 4: Simplify right side
    76,335.83x = 4,460,651,305.46
  5. Step 5: Solve for x
    x = 4,460,651,305.46/76,335.83
  6. Step 6: Final answer
    x = 58,434.57

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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.