Home / 78,897.52-118,347.32-26,307.02

Finding the Fourth Proportional to 78,897.52, 118,347.32 and 26,307.02

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Solution

The fourth proportional to 78,897.52, 118,347.32 and 26,307.02 is: 39,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897.52 : 118,347.32 = 26,307.02 : x
  2. Step 2: Convert to fraction form
    78,897.52/118,347.32 = 26,307.02/x
  3. Step 3: Cross multiply
    78,897.52x = 118,347.32 × 26,307.02
  4. Step 4: Simplify right side
    78,897.52x = 3,113,364,722.45
  5. Step 5: Solve for x
    x = 3,113,364,722.45/78,897.52
  6. Step 6: Final answer
    x = 39,460.87

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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.