Home / 85,603.50-118,133.24-47,877.75

Finding the Fourth Proportional to 85,603.50, 118,133.24 and 47,877.75

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Solution

The fourth proportional to 85,603.50, 118,133.24 and 47,877.75 is: 66,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,603.50 : 118,133.24 = 47,877.75 : x
  2. Step 2: Convert to fraction form
    85,603.50/118,133.24 = 47,877.75/x
  3. Step 3: Cross multiply
    85,603.50x = 118,133.24 × 47,877.75
  4. Step 4: Simplify right side
    85,603.50x = 5,655,953,492.02
  5. Step 5: Solve for x
    x = 5,655,953,492.02/85,603.50
  6. Step 6: Final answer
    x = 66,071.52

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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.