Home / 52,281.12-72,148.32-31,070.88

Finding the Fourth Proportional to 52,281.12, 72,148.32 and 31,070.88

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Solution

The fourth proportional to 52,281.12, 72,148.32 and 31,070.88 is: 42,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,281.12 : 72,148.32 = 31,070.88 : x
  2. Step 2: Convert to fraction form
    52,281.12/72,148.32 = 31,070.88/x
  3. Step 3: Cross multiply
    52,281.12x = 72,148.32 × 31,070.88
  4. Step 4: Simplify right side
    52,281.12x = 2,241,711,792.92
  5. Step 5: Solve for x
    x = 2,241,711,792.92/52,281.12
  6. Step 6: Final answer
    x = 42,878.04

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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.