Home / 76,779.39-105,915.08-52,864.55

Finding the Fourth Proportional to 76,779.39, 105,915.08 and 52,864.55

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Solution

The fourth proportional to 76,779.39, 105,915.08 and 52,864.55 is: 72,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779.39 : 105,915.08 = 52,864.55 : x
  2. Step 2: Convert to fraction form
    76,779.39/105,915.08 = 52,864.55/x
  3. Step 3: Cross multiply
    76,779.39x = 105,915.08 × 52,864.55
  4. Step 4: Simplify right side
    76,779.39x = 5,599,152,248.52
  5. Step 5: Solve for x
    x = 5,599,152,248.52/76,779.39
  6. Step 6: Final answer
    x = 72,925.20

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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.