Home / 74,520.18-102,852.45-42,710.40

Finding the Fourth Proportional to 74,520.18, 102,852.45 and 42,710.40

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Solution

The fourth proportional to 74,520.18, 102,852.45 and 42,710.40 is: 58,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,520.18 : 102,852.45 = 42,710.40 : x
  2. Step 2: Convert to fraction form
    74,520.18/102,852.45 = 42,710.40/x
  3. Step 3: Cross multiply
    74,520.18x = 102,852.45 × 42,710.40
  4. Step 4: Simplify right side
    74,520.18x = 4,392,869,280.48
  5. Step 5: Solve for x
    x = 4,392,869,280.48/74,520.18
  6. Step 6: Final answer
    x = 58,948.72

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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.