Home / 85,676.23-118,276.10-53,862.67

Finding the Fourth Proportional to 85,676.23, 118,276.10 and 53,862.67

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Solution

The fourth proportional to 85,676.23, 118,276.10 and 53,862.67 is: 74,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,676.23 : 118,276.10 = 53,862.67 : x
  2. Step 2: Convert to fraction form
    85,676.23/118,276.10 = 53,862.67/x
  3. Step 3: Cross multiply
    85,676.23x = 118,276.10 × 53,862.67
  4. Step 4: Simplify right side
    85,676.23x = 6,370,666,543.19
  5. Step 5: Solve for x
    x = 6,370,666,543.19/85,676.23
  6. Step 6: Final answer
    x = 74,357.46

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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.