Home / 85,746.63-118,334.58-51,754.59

Finding the Fourth Proportional to 85,746.63, 118,334.58 and 51,754.59

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Solution

The fourth proportional to 85,746.63, 118,334.58 and 51,754.59 is: 71,423.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,746.63 : 118,334.58 = 51,754.59 : x
  2. Step 2: Convert to fraction form
    85,746.63/118,334.58 = 51,754.59/x
  3. Step 3: Cross multiply
    85,746.63x = 118,334.58 × 51,754.59
  4. Step 4: Simplify right side
    85,746.63x = 6,124,357,670.72
  5. Step 5: Solve for x
    x = 6,124,357,670.72/85,746.63
  6. Step 6: Final answer
    x = 71,423.89

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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.