Home / 88,421.40-132,329.70-53,386.20

Finding the Fourth Proportional to 88,421.40, 132,329.70 and 53,386.20

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Solution

The fourth proportional to 88,421.40, 132,329.70 and 53,386.20 is: 79,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,421.40 : 132,329.70 = 53,386.20 : x
  2. Step 2: Convert to fraction form
    88,421.40/132,329.70 = 53,386.20/x
  3. Step 3: Cross multiply
    88,421.40x = 132,329.70 × 53,386.20
  4. Step 4: Simplify right side
    88,421.40x = 7,064,579,830.14
  5. Step 5: Solve for x
    x = 7,064,579,830.14/88,421.40
  6. Step 6: Final answer
    x = 79,896.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.