Home / 94,113.78-129,878.10-51,671.40

Finding the Fourth Proportional to 94,113.78, 129,878.10 and 51,671.40

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Solution

The fourth proportional to 94,113.78, 129,878.10 and 51,671.40 is: 71,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,113.78 : 129,878.10 = 51,671.40 : x
  2. Step 2: Convert to fraction form
    94,113.78/129,878.10 = 51,671.40/x
  3. Step 3: Cross multiply
    94,113.78x = 129,878.10 × 51,671.40
  4. Step 4: Simplify right side
    94,113.78x = 6,710,983,256.34
  5. Step 5: Solve for x
    x = 6,710,983,256.34/94,113.78
  6. Step 6: Final answer
    x = 71,307.13

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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.