Home / 85,630.37-118,130.48-55,425.39

Finding the Fourth Proportional to 85,630.37, 118,130.48 and 55,425.39

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Solution

The fourth proportional to 85,630.37, 118,130.48 and 55,425.39 is: 76,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,630.37 : 118,130.48 = 55,425.39 : x
  2. Step 2: Convert to fraction form
    85,630.37/118,130.48 = 55,425.39/x
  3. Step 3: Cross multiply
    85,630.37x = 118,130.48 × 55,425.39
  4. Step 4: Simplify right side
    85,630.37x = 6,547,427,924.89
  5. Step 5: Solve for x
    x = 6,547,427,924.89/85,630.37
  6. Step 6: Final answer
    x = 76,461.52

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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.