Home / 76,330.17-105,335.64-42,337.51

Finding the Fourth Proportional to 76,330.17, 105,335.64 and 42,337.51

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Solution

The fourth proportional to 76,330.17, 105,335.64 and 42,337.51 is: 58,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,330.17 : 105,335.64 = 42,337.51 : x
  2. Step 2: Convert to fraction form
    76,330.17/105,335.64 = 42,337.51/x
  3. Step 3: Cross multiply
    76,330.17x = 105,335.64 × 42,337.51
  4. Step 4: Simplify right side
    76,330.17x = 4,459,648,448.52
  5. Step 5: Solve for x
    x = 4,459,648,448.52/76,330.17
  6. Step 6: Final answer
    x = 58,425.76

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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.